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Gridgen - Pointwise

1. g the point counts from updating in the Blackboard during the initialization of an fixed grid and saving a block after anisotropic initialization caused Gridgen to exit prema een modified to resolve this problem Releasing the vo turely Logic has SPR 10235 Fixed a bug which was causing a few anisotropic triangles along an edge to march out further than their neighbors SPR 9972 An issue that was keeping a pole domain that had been split from being rejoined has been fixed SPR 9639 A bug has been fixed which was causing local grid anomalies for anisotropic domains that were projected onto highly curved surfaces 5 7 Release Notes Version 15 SPR 9611 An issue has been resolved in which a Unigraphics file was not importing into Gridgen properly SPR 9461 Resolved a bug in which a particular database constrained prism extrusion caused Gridgen to exit prema turely SPR 7584 A bug which caused Gridgen to exit prematurely after importing an IGES file then restarting has been fixed 5 9 Gridgen Version 15 11 Release Date December 2007 The following is a listing of the new features that have been added to V15 11 1 Gridgen now supports import of CATIA V5 R17 and earlier files Note T V5 native CAD reader is an optional product CAD reader is an optional product 3 Gridgen now supports Native CAD Readers on HP UX 11 0 4 Gridgen now features updated license management software V15 11 will re
2. of a connector SPR 10551 Resolved a bug which caused the boundary conditions applied to block interfaces to be reset improperly after merging connectors or domains at the block interface SPR 10512 An issue was fixed in which an anisotropic block would not initialize in V15 12 but had in previous versions 5 8 Gridgen Version 15 12 Release Date July 2008 The following is a list of new features included in V15 12 1 The ability to create anisotropic domains on highly curved surfaces has been ad ridgen s aniso tropic triangle mesher 2 Support for the Sun Solaris platform has been upgraded to Solari Prior versions of this operating system will no longer be supported e This new version contains the ability to mesh volumes with 3 An upgraded version of Gridgen s tetrahedral mesher is no improvements to the speed of the anisotropic tetrahedral mes larger ranges of cell sizes 4 Export via the CGNS_UNSTR AS W has bee raded to CGNS V2 5 5 Unigraphics NX5 files may now be importe an optional product te The Unigraphics native file reader is 6 Catia V5 R18 files may now be imported into en Note The Catia V5 native file reader is an optional product 7 PRO E Wildfire 4 files m optional product ported into Gridgen Note The PRO E native file reader is an The following is a listing of te issues resolved in V15 12 SPR 10323 An issue that anisotropic 4 SPR 1029
3. CD export that caused failures SPR 2874 Improved postscript export of pictures from Gridgen Problems had been encountered where postscript images exported from Gridgen were different from bitmap JPEG and PNG image exports SPR 2870 Resolved a bug which caused Gridgen to have a segmentation violation when importing a specific IGES file SPR 2864 When a PLOTSD file had a dat extension and you tried to import it as a database entity was a segment file their default extension is dat and failed Error checking was ad SPR 2860 ridgen assumed it capture this Fixed a problem with the identification of mesh singularities when exporting data for F at caused fail ures SPR 2856 The tolerances used to determine the default triangulation of ne ba faces were not small enough to always produce an appropriate triangulation These tolerances ha adjusted SPR 2769 When Reset Attributes was selected in the Extrusio menu were reset as well Logic has been added t SPR 2748 Corrected file extension and data output of VSAER SPR 2635 et Attributes menu the Stop Criteria in the Extrusion revent this from occurring ort files When joining two annular half contained a branch cut segm performed on the domain cause reconstruction logic for joined dor SPR 2159 ctured domains Gridgen assumed the resulting joined domain a re initialization of the domain Further checking Gridgen be emptied This p
4. No matter what is visible in the Display window pick masks ensure you will only pick what you want to pick The DB Pick Mask command is available in every database entity selection Browser and in the SET DEFAULT VALUES menu A new image manipulation tool called Zoom to Screen Extents has been added Using this tool U hot key repositions the image so that it fills the Display window in its current orientation it is centered and zoomed but its rotation is not changed Database trimmed surfaces may now be drawn with iso parametric lines Isoli ode in the DIS PLAY ATTRIBUTES menu 5 21 3 Importing and Exporting Files Gridgen s Native CAD Readers for Pro ENGINEER CATIA V4 improved robustness and much faster read times The Pro E re versions 2000 and 2001 and the STEP reader now supports extens STEP AP203 have been reworked for n extended to provide support for the AP 203 and AP 214 schema Gridgen now keeps track of the names of database files on which a gri been generated If you import a Gridgen gg file without its database files Gridgen will provide a warning and list the names of the missing files 5 21 4 Layer Manager A CAD style layer manager has been added for data entities Layer Manager button in the MAIN MENU and M hot key The laye ger may be used at most any time while running Gridgen and appears in a new window By sing each database entity to a layer you may easily control the visibility
5. an Unlinked Con from the Gridgen User Manual SPR 3117 5 25 Release Notes Version 15 Import of a very large IGES database was causing Gridgen to crash on an IBM AIX workstation This prob lem has been fixed SPR 3038 The CFDSHIP IOWA CFD solver boundary conditions were found to be out of date in Gridgen The bound ary conditions for this analysis software have now been updated SPR 2761 A problem was resolved in which importing multiple database files and multiple grid files caused a segmen tation violation within Gridgen SPR 2553 Trying to import a gridgen restart file into Gridgen on a workstation running Redhat Li numerous error messages This problem has been fixed SPR 1944 7 2 was causing Resolved a bug that was causing unnaturally high concentrations of tetrahedral cells in t ior of unstructured block volumes SPR 1212 Examining a very large data set on an IBM AIX platform work problem has been fixed causing Gridgen to crash This 5 20 Gridgen Version 15 01 September 2003 Version 15 01 contains several new features that af restart gg and database dba files from V15 01 not be possible due to a format change in Gridgen elow Please be aware that importing Gridgen snance releases into Gridgen V15 00 will estart and database files 1 Gridgen now supports the impo Pro E Wildfi 2 Gridgen s Native CAD Re s are now supported on the IBM AIX platform 3 A bo
6. d in the Glyph Reference Manual to include this flag and its options Using Shift R1 Gridgen to exit SPR 5298 utton on certain database entities to determine x y z coordinates was causing as been modified to resolve this problem Trying to modifying or solve on certain domains created in Gridgen V14 caused Gridgen V15 08 to exit Logic has been modified to handle these domains SPR 5290 Resolved a bug which caused Gridgen to terminate when creating a fit for a database surface SPR 5274 Fixed a bug in which the intersection of two groups of database entities caused Gridgen to beep and generate error messages SPR 5264 5 12 Gridgen Version 15 09 Release Date March 2006 Resolved a bug in which Gridgen was unable to export the analysis boundary condition file for Cobalt SPR 5261 Fixed an issue which caused the graphics fro SGI workstations to either flicker or slow down SPR 5257 An issue was found in which all database entities selected for rotation did not rotate at the specified angle Logic has been added to correct this problem SPR 5233 Fixed an issue which caused Gridgen to exit with a memory error when repeatedly entering the structured solver with a subgrid then aborting SPR 5229 Fixed an issue which caused Gridgen to exit when running a domain in the Do tured solver which had inappropriate database references SPR 5218 Resolved a bug which caused Gridgen to exit when importing a dat c
7. extrusion or From Doms Block extrusion This provides users with the ability to e simultaneously create extruded domains each with a different extrusion type or e simultaneously extrude hexahedral and prism blocks 4 Improvements have been made in the manner in which Gridgen creates unstructured domains on highly curved shell entities 5 The mouse sensitivity is now based on movement rate which should allow users control over mouse sensitivity for machines with faster graphics cards The following is a listing of technical issues resolved in V15 06 SPR 4494 Fixed a problem involving the export of pyramids to NSAERO Logi are exported correctly SPR 4479 as been added to ensure pyramids Resolved bug in which a database model was displayed in the lower ri could not be centered SPR 4457 ner of the Display window and Gridgen was not checking appended grids for ident original blocks did not touch Logic has been added SPR 4378 ames for cases in which the appended and eck for these cases Journaling the creation of a data Gridgen to abort out of journa SPR 4366 ained connector that was constrained to a curve was causing ogic has been added to fix this problem Resolved a bug which was resetting boundary conditions for all blocks during an extrusion instead of just resetting the boundary conditions for the extruded blocks SPR 4344 g the types of database entities created from the
8. for all supported database entities except groups 8 Unstructured domains may now be created on closed or periodic shell surfaces via use of the On DB Ents command 9 CGNS files are now exported with the cgns extension The following is a listing of technical issues resolved in V15 07 SPR 4889 When a database constrained BC was applied for a block extrusion all database ot involved were disabled The logic involved in this process has been modified to prevent this SPR 4879 Fixed a graphics issue in V15 07R1 which caused parts of Gridgen pear Logic has been added to correct this problem SPR 4859 us and display to flash or disap Resolved a bug that caused the redimensioning of a connector to be jo SPR 4793 d incorrectly from Gridgen When imported from an IGES file some database during connector creation Logic has been modifie ties during import SPR 4787 Setting unstructured baffles BC Logic has been added to corre SPR 4783 es were translated and caused problems Gridgen interprets these database enti AS causing error messages and CFX 5 export failure in Gridgen Creating periodic domains then bringing them into Domain Modify was causing their periodic links to be erased Logic hast modified to correct this problem SPR 4773 Resolved a b SPR 4769 dgen was unable to export files for WIND US grids containing prisms Resolved a bug in which Gridgen s translati
9. info have y spacing applied m e selected The following is a listing of tee ues resolved in Version 15 01 SPR 3509 X LINUX LICENSE _CONTROL sh script was not reporting the Grid one host ID Resolved a problem in which the gen host ID for servers with more th SPR 3456 an edge on a particular grid using a geometric growth rate of 1 was causing a core ption in Gridgen This problem has been fixed SPR 3129 Import was causing the interior points of a unconstrained pole within a Gridgen quicksave file to be pro jected onto a nearby database surface SPR 3122 The description of the grid_angle flag for the Glyph commands domExtrusionAtt and blkExtrusionAtt has been corrected to list the appropriate range of values SPR 3120 Importing a structured grid created on periodic or looped database entities was causing grid points to be pulled off of the appropriate database entities Logic was added to rectify this situation SPR 3119 5 27 Release Notes Version 15 After placing a domain in a domain group then splitting the block that domain belonged to and splitting the domain as a result the group identity of the resulting domain halves were improperly set SPR 3103 Resolved a problem in that was causing segmentation violations in Gridgen when examining a block SPR 3092 Running the elliptic solver on a domain containing periodic pairs was breaking the periodicity of the connec tor pairs The logic c
10. with a corrupt pole The restart file has been replaced to fix this problem SPR 5969 An issue was resolved in which creating a quilt on a particular geometry would cause Gridgen to exit SPR 5951 Domain projection onto a quilt was causing Gridgen to exit Logic has been modifi fix this problem SPR 5919 Resolved an export bug for CFD which was causing the orientation of 2D grids to p umes negative vol SPR 5898 A bug was fixed in which Gridgen would exit when a re extru oc saved 5 12 Gridgen Version 15 09 Release Date M 006 New features included in V15 09 are listed below deling by introducing two new database e Quilts will allow users to form collec ow users to form collections of adjoining quilts and able the user to form watertight topological entities 1 Solid model support is now available Grid entities quilts and models which are hierarch tions of adjoining trimmed surfaces Models trimmed surfaces Both of these new entity typ for quick and easy meshing ition to the c port the import and export as well oo SON cpi The Gridgen tetrahedral mesher has enhanced error reporting for unstructured volumes that are prob lematic to initialize 9 Improvements have been made to the tetrahedral mesher s ability to detect and correct crossing pyra mids within an unstructured volume 10 The PROSTAR bread command has been added for export to the START CD input file This com mand w
11. work much better with slope continuous curves 5 21 14 Miscellaneous You can create groups of connectors domains and blocks with the Group Define command in the CON NECTOR COMMANDS DOMAIN COMMANDS and BLOCK COMMANDS menus respectively For example you can create a group consisting of all the connectors on the symmetry plane or all the domains on the database Then whenever those entities are needed you can simply pick the group by its name which will appear at the top of the Browser instead of picking each individual entity The database Intersect command has been enhanced with the addition of Closest Approach intersections for curves A database point entity is created on each of a pair of entities where they come closest to each 5 32 Gridgen Version 15 00 June 2003 Diagnostic Functions other When you exit Gridgen the software now checks to ensure that any changes you have made to the database have been saved to a composite database file If the database has unsaved changes you are notified and given the opportunity to export a database file 5 21 15 Diagnostic Functions New functions have been added to the Examine command for domains and blocks equi volume skewness and equi angle skewness Skewness volume and Skewness angle buttons respectively 5 21 16 Analysis Software Interfaces Volume conditions VCs may now be applied to the cells on a block s interior using t the ANALYSIS S W COMMANDS menu VCs are just lik
12. 3784 Using On DB Ents to create unstructured domains on surfaces of revolution resulted in Gridgen creating empty domains on those surfaces This issue has been resolved SPR 3772 Exporting a grid with custom volume conditions to the ASW FLUENT was causing Gridgen to crash Logic has been added to resolve this problem SPR 3754 Resolved a bug which caused grids exported for the ASW CFD to appear to have n e volumes within CFD SPR 3737 Fixed a bug which caused Gridgen to have a segmentation violati periodic domains with floating BC s SPR 3731 ning the elliptical smoother on Extruding a block with the DB Constrained boundary condition past the Gridgen to crash Logic has been added to resolv issue SPR 3725 ge of the database was causing Applying Fluent s Porous Jump BC s in grids which rupt Fluent cas files SPR 3691 multiple VC s was causing Gridgen to export cor Gridgen s block equi angle sk examination function was not appropriately showing poor quality cells Logic has been added te SPR 3550 Workstations runni inux Redhat V9 0 reported warnings of incorrectly built binary files when the FLEXIm serv FLEXIm server has been upgraded to V9 2 to correct the error messages ch points in block connection interfaces were mis matched after structured blocks were run through ctured block solver 5 19 Gridgen Version 15 02 December 2003 New features included in Gridg
13. 4611 the numbering of a connector formed from a umber that occurs The Glyph manual page for gg conJoin incorrec join This section has been updated to more accu SPR 4573 A bug has been resolved which caused _a grid import to V15 06 to have one less block than if imported into V15 05 SPR 4570 Logic has been added to Grid input files SPR 4561 elp correct an issue with the calculation of normals for VSAEROhybrid A bug has been fixed which caused Gridgen V15 06 to terminate while importing a particular IGES file This file d ot cause previous versions of Gridgen to terminate SPR 4467 Fixed a bug that caused the DB Intersect command to function incorrectly when used with ill formed data base surfaces SPR 4466 Resolved a bug which caused Gridgen to take much longer to copy blocks in V15 05 than in V15 04 SPR 4369 A bug has been resolved which caused Gridgen to create a corrupt unstructured block volume 5 15 Gridgen Version 15 06 Release Date December 2004 New features included in Gridgen V15 06 are listed below 5 17 Release Notes Version 15 1 Gridgen is now supported on MacOS X for Apple Power Mac GS platforms 2 An extrusion boundary condition has been added that allows a hexahedral or prism block to be extruded while its boundary is constrained to a pre existing connected structured domain in the grid 3 Gridgen now allows the use of mixed extrusion types using From Cons domain
14. 7 Gridgen now supports the export of grids in TecPlot s PLT file format The following is a listing of technical issues resolved in V15 10 SPR 6961 A bug was fixed in which Gridgen locked up and printed numerous GL Error messages while deleting or scaling domains This issue occurred on both Linux and SGI platforms SPR 6891 5 9 Release Notes Version 15 Resolved a bug which caused the playback of a journaled NASTRAN import script to fail SPR 6630 Initialization of an unstructured block containing pyramids was causing Gridgen to crash Logic has been modified to correct this problem SPR 6552 Fixed a bug in which the unstructured face normals were being calculated incorrectly for structured domains within the face SPR 6505 Gridgen was failing to export CFX input files for grids containing baffles with a Wall boundary condition Logic has been modified to correct this problem SPR 6305 Fixed a bug which caused Gridgen to exit when exporting a grid with periodic bound FLUENT SPR 6302 Resolved a problem which was causing a different number of databa V15 07 when the same database file was imported SPR 6284 ities to be reported in V15 09 from For certain databases a trimmed surface could not be created from ca been added to correct this problem SPR 6252 intersection curves Logic has A bug was resolved in which the Browser window vould become disabled after using the DB Pick Mas
15. Gridgen Version 15 19 Release Date TBD 5 Release Notes Version 15 5 1 Gridgen Version 15 19 Release Date TBD There are currently no new technical issues resolved in V15 19 5 2 Gridgen Version 15 18 Release Date August 2012 The following is a list of technical issues resolved in V15 18 SPR 10904 Resolved an issue where setting the rotation point ended with a different location being selected SPR 14385 Fixed an issue where a crash occurred creating a T Rex block SPR 14407 Corrected a problem causing transfer of a Gridgen restart file to Poi e to fail and assert SPR 14415 Fixed a problem in the SUGGAR output file for overset comput SPR 14496 Resolved a problem preventing sufficient anisotropic tetrahedral recombination SPR 14518 Resolved an issue causing inconsistent tets on opp es of a symmetry boundary SPR 14538 Fixed a problem causing T Rex layer marching in the solver SPR 14656 Corrected an issue preventing meshing for fronts containing structured domains SPR 14793 Resolved a pro SPR 149 ing V15 17 to recombine fewer prisms than V15 16 Corrected an SPR 14939 Fixed a Glyph problem preventing the 64 bit tetrahedral mesher from being called on 64 bit systems SPR 14944 aused many errors to be generated when saving large unstructured blocks Resolved an error causing a crash when selecting domains for face assembly SPR 14954 Corrected a block initialization is
16. SPR 13593 g rapid growth of anisotropic cells in concave regions Resolved the block re specify issue preventing updates of block computational coordinates after a block had been saved SPR 13754 Corrected the calculation of angle skewness for Examine SPR 13776 Structured domains in a T Rex front prevented the front from advancing SPR 13786 Solved a problem causing domains to disappear after saving from the unstructured solver 5 2 Gridgen Version 15 16 Release Date August 2010 SPR 13787 Fixed a problem causing blocks to appear after all blocks were deleted and a restart saved SPR 13918 Corrected a recombination issue for T Rex blocks SPR 14194 Updated the centroid skewness metric used in T Rex 5 4 Gridgen Version 15 16 Release Date August 2010 The following is a list of new features included in V15 16 jai Gridgen is now available as a universal binary for Intel and PPC Macs runnin sions 10 4 and higher PLOT3D support has been extended to allow i blanking byte order swa ingle block grids an Nn p gt Ww N O lt Q u Q of v n a S ion Ke Q z S Q S 5 o Gis 3 gel 2 o Q a 2 Q a Q gq x a gt fo E 5 Q gq ge e i as a Q ist 5 go lt Da S D y N Q Pointwise CAE export can now create prisms by recombina erated in Gridgen that contain multiple normals on sharp corne anisotropic tet
17. The axis for polar TFI may now be defined interactively rather than just by type in 5 21 11 Grid Methods for Unstructured Domain The unstructured solver is now applied to a copy of the selected until you exit the solver If you abort out of the solver the original he original grids are not replaced recovered The unstructured domain solver attributes for minimum and maximum c the SELECT GRID CONTROL PARAM menu will make it easier to achieve the desired effect b compute the area of a triangular cell ize Min Size and Max Size in en changed from area to edge length This change ifying an edge length rather than having to 5 21 12 Grid Extrusion Methods A Re Extrude command is avai in the MODIFY DOMAINS and MODIFY BLOCKS menus You may select a block for exa as created by extrusion and Re Extrude will allow you to con ity of Extrude in the Create menu step forward step 5 21 13 Modi A new capabi dded to the Split command for database curves The command Closest O via Pick Poi e cursor to a point on the curve that is closest to another point that you pick This is usef e curve using a point generated by a closest approach intersection see below The Join comma database curves now detects whether the joined curve is slope continuous and if it is not you are given the option to smooth the curve to a tolerance that you specify Ifthe joined curve is to be used to create a database surface the surface creation algorithms
18. actually changing the block solvers number iterations The Glyph logic which allowed this to happen has been modified SPR 3004 When journaling block face creation that included unstructured domains erasing a domain that had been selected caused errors when the journaled script was executed Logic has been added to correct this prob lem 5 28 Gridgen Version 15 01 September 2003 SPR 2996 Fixed a database file import problem caused by database layer names with spaces in them SPR 2995 A difference in the way Gridgen was compiled for Linux and Windows platforms was causing problems with extra connectors and untrimmed surfaces when generating a grid on a IGES database This has been fixed SPR 2994 A CATIA V4 model file failed to import into Gridgen on a Linux platform but successfully imported into Gridgen on a Windows platform Native CAD Readers libraries have been updated to correct this problem SPR 2991 The application of has been added to A problem occurred when LSQ Fit was applied to a connector with a database end LSQ Fit caused the database constrained end node to be pulled off the database prevent this problem from recurring SPR 2984 n out as NULL This has been types supported BCInflow e written out as BC type For CGNS Structured export boundary condition types were being resolved so that Gridgen will write out one of the four CGNS Str BCOutflow BCWall BCSymmetryPlan
19. and usability of layers and 1 a For example you may include all of the database entities tis time to work on the wing mesh you can use the layer man he layer manager includes the ability to move entities from layer to The Coons butte e DB CREATION menu lets you create a NURB surface in the database by defining its perimeter It is useful for filling holes in the database model The Auto toggle next to the Coons button indicates whether you will create the Coons surface manually Auto toggled off by picking in sequence the curves around the perimeter or automatically Auto toggled on by picking several entities and letting Grid gen make as many surfaces as it can find from the selected data All of the database surface creation tools have been enhanced so that the boundaries of surfaces are now available for use as definition curves e g axis generatrix etc during surface creation 5 21 6 Creating Connectors No changes 5 31 Release Notes Version 15 5 21 7 Creating Domains No changes 5 21 8 Creating Blocks No changes 5 21 9 Grid Methods for Connectors No changes 5 21 10 Grid Methods for Structured Domains and Blocks The elliptic PDE solver is now applied to a copy of the selected domains and blocks e original grids are not replaced until you exit the solver If you abort out of the solver the original ecovered The elliptic PDE solver for both domains and blocks has been sped up by roug five
20. ausing this problem has been repaired SPR 3090 When scripting then copying of a connector and a subsequent redimensioning neither the Glyph dimension ing nor redimensioning commands were journaled The logic that caused this omission has been corrected SPR 3073 SPR 3066 Resolved a problem in which applied interval shading for a datab as not retained after the cre ation of a connector on the surface SPR 3065 Users with German keyboards were unable to enter the symbols and P in text input mode Hot keys have been added to allow the entry of these and ot ols used in text input SPR 3032 Resolved a bug which caused Gridgen to have a seg SPR 3023 Setting the ConSplit angle to 45 has now been added to accoun SPR 3022 ion violation when importing a specific IGES file or shell entities was causing empty domains to be created Logic ario and prevent this problem from recurring When journaling in Gridgen the Re e Add Ctrl Pt at O button was not available This capability has now been added fo maling SPR 3016 Fixed a prob unstructured so SPR 3014 sing error messages when trying to pass an empty domain to the domain yph script When copy a database group for translation or rotation groups were copied and placed incorrectly Logic has been modified to fix this problem SPR 3012 Glyph scripts that contained the iterations flag for the unstructured block solver were not
21. been reduced 5 The hot keys for Zoom In and Zoom Out are now the F5 and respectively The following is a listing of technical issues resolved in V15 03 SPR 3928 Resolved a bug involving Gridgen s startup script attempting to start Gridgen SPR 3867 xmodmap error message to appear when Resolved a bug that was causing the gg dispPick POINT mode to work incorrectly SPR 3865 While importing a VRML file o This problem has been resolved SPR 3862 Fixed ab 1200 when t SPR 3851 IP UX workstation Gridgen was crashing due to insufficient memory ing Gridgen to crash on SGI workstations with a display resolution of 1600 x RGB image files Resolved a bug that caused Gridgen to crash when importing a particular IGES file SPR 3831 Resolved a bug in which point and line singular pole domains were not being initialized properly for struc tured grids SPR 3821 The manual pages for the Glyph commands gg dbSplit gg dbSurfBegin gg dbSurfAddEnt and gg dbSurfEnd needed minor updates These manual pages are now current SPR 3814 Upgrading from Sun Solaris 8 to Sun Solaris 9 was causing startup issues with the Gridgen FLEXIm server 5 23 Release Notes Version 15 A script has been developed to handle this issue SPR 3808 The manual pages for the commands gg domJoinAddDom gg domJoinBegin and gg domJoinEnd were missing from the Glyph Reference Manual These manual pages have been added SPR
22. cal issues resolved in V15 02 SPR 3656 Gridgen s tetrahedral mesher failed to generate the interior volume cells of a bloc properly connected but generated a misleading error message during failure been revised to be more indicative of the real problem SPR 3633 Corrected a problem with the Glyph command gg domReport th for the J size ratio SPR 3632 Fixed a bug which caused the export of block faces in PLOT3D unfor incorrect SPR 3595 o the mesh not being essage has since causing it to report incorrect values d double precision format to be Resolved a bug that allowed a block re extrusion acobian stop criteria selected to proceed a num ber of steps past the point at which cells with bad Ja SPR 3565 Domains belonging to blocks e enabled were being displayed as disabled in the domain enable dis able blackboard Logic ha t this problem SPR 3556 or specific composite database and gridgen restart files was causing a segmenta This problem has been fixed Selecting Ed tion violation i SPR 3550 Errors printed out when starting the Gridgen license server on a Linux Redhat 9 0 workstation have now been fixed with an upgrade to the latest version of FLEXIm Version 9 2 SPR 3515 A problem was resolved in which composite database and grid files exported in V14 04 were causing Grid gen V14 05 and up to hang during import SPR 3463 Removed a reference to the command Pick
23. correctly when specified in the GUI SPR 10949 Fixed an issue that caused all boundary conditions to be removed from a block when an additional face was added 5 4 Gridgen Version 15 14 Release Date June 2009 SPR 9731 Resolved a bug which allowed a particular STL file to be imported on Windows but not on Linux platforms 5 6 Gridgen Version 15 14 Release Date June 2009 The following is a list of new features included thus far in V15 14 1 Gridgen 64 bit for Linux workstations is now available 2 Improvements have been made to the performance of anisotropic triangles and tetrahedra marching out of concave regions 3 Improvements have been made to the performance of anisotropic triangles and tetrahedra marching off of convex regions 4 The unstructured domain solver s boundary decay function has been modifi just for the inclusion of anisotropic layers in the domain 5 The unstructured block solver can now extract prisms across multiple anisotropic bl multaneously 6 The unstructured block solver now allows for the insertion of a nal points in the isotropic region near a block s final anisotropic layers These additional poin reater refinement and transition 7 Gridgen now supports import of Siemens PLM NX 6 and ear s Note The Siemens PLM NX native CAD reader is an optional product The following is a list of technical issues resolved far in V15 14 SPR 11652 An bug was resolved that was ca
24. crash when run on structured blocks with one cell in the k direction SPR 4069 Resolved a bug which was preventing Gridgen from exporting an unstructured block free floating baffle SPR 4059 Resolved a bug which appended _01 to any domain or connecto overwrote the previous grid system SPR 4045 a grid was re imported and Resolved an issue which caused error messages to appear and export to fail when writing a 2D structured block to CGNS STRUCT SPR 4034 Resolved a bug that was causing problems with bo conditions and interblock boundaries during NSAERO export SPR 4014 Fixed a problem which cau SPR 3877 ck when it was split along a pole connector When creating connectors on a pa r trimmed surface using the On DB Entities command the connec tors were being off the surface Logic has been added to fix this issue SPR 3642 A CATIA V4 file containing composite curves could be imported into Gridgen V14 05 but not V15 Logic has been added to handle this scenario so that the data will import correctly 5 17 Gridgen Version 15 04 Release Date May 2004 New features included in Gridgen V15 04 are listed below 1 Support for the STAR CCM analysis software package has been added 2 A new utility script is available which allows users to import Kreila geometry files Kreilalmport glf The new script is available in the gridgen_home_path utils directory 3 Logic has been added to make unstr
25. cular order th sions Logic has been added to deal with this scen SPR 4155 ined block exhibited problems with dimen Resolved an issue which was causing Gridgen to cras en importing a particular restart file SPR 4151 Resolved a bug in which Gri z multiple dba and gg files together during import SPR 4144 The journaling of gg domSplit was modified so that a script would not fail if only one domain resulted from a domain split Resolved a b sing the export of FLUENT and PLOT3D ASCII files to have some exponents SPR 4116 Modified the description of the COBALT analysis software package to bring it up to date SPR 4113 Fixed a memory allocation error message that appeared when exporting analysis data to FLUENT so that it reports the number of bytes that are required SPR 4108 The Glyph manual page for gg segAddControlPt was missing the force flag A description has been added for this flag SPR 4106 5 20 Gridgen Version 15 04 Release Date May 2004 Fixed a bug which was causing import problems for certain IGES files SPR 4102 Shell entities that were disabled and in layers that were off were being shown in browser lists as being avail able for picking Logic has been added to correct this problem SPR 4101 Glyph manual pages for gg gridImport were corrected to explain which import options corresponded to particular import flags SPR 4085 Fixed a bug which was causing the elliptic solver to
26. e All other B UserDefined SPR 2983 When importing a CATIA the Native CAD Reader for database entities This has been fixed SPR 2960 d ceased to display the SHOW and NOSHOW status Gridgen s NSAERO export was incorrectly linking main to itself for a particular grid Logic has been added to resolve this problem SPR 2959 Fixed a bug that was causin f unstructured faces to be written in Fluent export file head ers SPR 2958 The smoothed d as not being retained after smoothing a domain that had an edge with an orthogonal ity boundar erances that were causing this problem have been adjusted After receiving T was added to the G ibility problems SPR 2943 of problems using Gridgen in conjunction with an ATI Rage graphics card a section dgen Hardware Requirements to document graphics cards with known Gridgen compat When trying to journal an internal edge for a domain Gridgen was not correctly journaling the reorientation of the internal edge Glyph commands have since been changed and one added to correct this issue SPR 2941 Fixed a problem with the Auto Merge option of the On DB Entities command for domain creation SPR 2933 Gridgen would not allow users to create periodic connectors that touched along an axis of rotation This restriction has now been changed to allow this behavior 5 29 Release Notes Version 15 SPR 2885 Fixed a problem in the baffle detection logic in STAR
27. e your solver s bounda the type of cells within the block for example fluid A porous solid VCs are si structural mechanics field If your selected Analysis Software supports VCs may be sorted according to VC when they are exported to the solver s grid file et VCs button in ditions but identify material IDs in the lls in your mesh domain even after the block on conditions but then delete the block ry conditions will be recovered CFD boundary conditions BCs are now permanent and will stay wi which they are set is deleted So if you create a block assign boun the boundary conditions are not lost When you recreate the blo from its domains Interfaces to the PHOENICS NSAERO VSAEROhybrid and doub solvers are now available ision CFX and TASCflow CFD 5 21 17 Glyph The scripting language now covers virtually every d in the GUI 5 33 Release Notes Version 15 5 34
28. en V15 02 are listed below 1 A Unigraphics Native CAD Reader is now available for the import of Unigraphics versions NX 18 17 16 and 15 part file formats Note The Unigraphics part file reader is an optional product 2 Double precision NSAERO export is now available in V15 02 3 A Merge Entities menu has been added that contains all node connector and node connector merging capabilities This menu can be found within the connector commands domain assembly and face assembly menus While in the new menu all connectors are color coded in the Display window based on the number of times they are used within the grid 5 24 Gridgen Version 15 02 December 2003 Notes about Upgrading to V15 02 A slight structural change occurred in Gridgen s documentation from V15 00 to V15 01 In the gridgen_home_path doc pdf directory there are now four new directories which contain the latest PDFs You will need to delete the old pdf files gridgen_home_path doc pdf userman pdf gridgen_home_path doc pdf glyph pdf gridgen_home_path doc pdf tutorial pdf and gridgen_home_path doc pdf rel notes pdf and use the new PDFs in the userman glyph tutorial and relnotes directories for reference Some of the FLEXIm license management files have been upgraded for the Linux platform for V15 02 Gridgen s license server will need to be stopped prior to upgrading then restarted once the upgrade is complete The following is a listing of techni
29. execu tion of a glyph script was resolved SPR 11138 Fixed a bug that caused Gridgen to exit prematurely when importing a particular Unigraphics NX file SPR 10840 Resolved an issue that was causing the boundary decay factor for unstructured d influence the number of anisotropic layers created SPR 8923 A bug which caused the tetrahedral block to be deleted during prism block has been resolved SPR 8373 ction for an anisotropic tetrahedral Resolved an issue that allowed an anisotropic block to be initialized o x workstations but not on Win dows workstations SPR 6999 Corrected an issue with a broken link in the Help SPR 6428 or Gridgen Corrected an issue in the Glyph Re Manual in the command index ich the gg dbSplit command was not referenced in 5 7 ji ease Date October 2008 The following is a list of technical issues resolved in V15 13 SPR 10867 Resolved a bug that caused problems with CGNS files when boundary condition or zone names contained a mark SPR 10727 An issue was fixed which caused poor quality unstructured anisotropic domains to be created on quilts of high curvature SPR 10716 An issue was fixed which caused poor quality unstructured domains to be created on quilts of high curva ture 5 6 Gridgen Version 15 12 Release Date July 2008 SPR 10706 A bug was resolved which caused Gridgen to crash when deleting a control point that coincided with the end
30. hat caused a change in the distribution type of a connector to be incorrectly Fixed a bug that cau SPR 3946 sd folded triangles to form in an initialized unstructured domain Resolved a bug that would not allow a domain to be mirrored while using large connector and node toler ances SPR 3944 Fixed a problem in which the number 2 could not be entered as a split location for a structured block when using Type In plane SPR 3943 Resolved a bug that caused Gridgen to crash when exporting analysis data to EXODUS II SPR 3914 5 22 Gridgen Version 15 03 Release Date March 2004 Resolved a bug which was causing the import of files into V15 02 and V15 03 to take much longer than in previous versions SPR 3817 Fixed a problem which was causing poor triangles to be formed along a the edge of a domain created on a linearly swept surface SPR 3792 Resolved a bug in which a very small grid point tolerance was causing a slowdown in connector operations 5 18 Gridgen Version 15 03 Release Date March 2004 New features included in Gridgen V15 03 are listed below 1 Gridgen now supports both single and double precision Unstructured WIND 2 Anew merge entities command has been added called Replace Conne nction allows users to select two connectors of which the first selected connector will be replace nector 3 Gridgen now supports double precision Cobalt export 4 Memory requirements for Cobalt export have
31. hese scripts and others is available in the file gridgen_home_path utilssSREADME txt Scripts that have been added and a brief description are included below e ConCircleCenterandRadius glf Displays an interface which is used to create a two connector cir cle based on circle center coordinates radius and dimension Connector dimension is split evenly over the two connectors e ColorPalette gif Displays an interface in which users can select or modify the colors that will be used in Gridgen for the wireframe and solid shade color palettes de color for three some points and no associativity the e ColorDombyDB gif Displays an interface in which users can assign a soli different levels of domain database associativity domains that have all poi points on a database entity Once the colors are assigned to the three rotation axes e BrickBlock glif Creates a rectangular block based on coo s and dimensions entered by user The two points the user must define correspond to the compu al minimum and maximums of the block By default dimensions of the block i j k are set to 10 If other dimensions are desired they must be specified within the script 4 freestream information provided by user inematic viscosity boundary layer origin and or tion has been specified connector ends which will e Y ConnectorSpacing gif Sets grid y s User must specify freestream velocity de the y value desired Once freestream
32. ill allow BC s assigned within Gridgen to be automatically read into PROSTAR 11 Gridgen is now supported on AMD Opteron Windows and Linux platforms 12 Gridgen is now supported on SGI Prism workstations 5 11 Release Notes Version 15 The following is a listing of technical issues resolved in V15 09 SPR 5730 Resolved an issue that caused Gridgen to hang whenever the From Doms button in the block creation menu SPR 5710 The Glyph command gg dbCurveSmooth was not documented in the Glyph Reference Manual The man ual page for this command has been added SPR 5705 Fixed a bug which was causing Gridgen to exit when importing a database composite file containing a model with 0 faces SPR 5689 Fixed a bug which was causing the export of files for STAR CD to fail SPR 5686 Resolved a problem that was causing the export of a large Cobalt file togfail SPR 5634 Resolved a bug in which the connectivity between structured an exported correctly for CGNS SPR 5334 red blocks was not being A problem was resolved in which an unstructured as corrupt SPR 5331 ntaining baffle faces was imported into Gridgen Fixed a bug which caused Gridgen to exit when imp trimmed surface SPR 5311 a database composite file containing a corrupt Resolved a bug which was c SPR 5309 an IGES file to fail in Gridgen V15 08 The extents flag or the gg dispViewReset command The manual page for gg dis
33. information has been added SPR 5040 A Gridgen restart file containing an unstructured block with baffles imported as corrupt Logic has been modified to correct this problem SPR 4909 Resolved a bug which caused Gridgen to terminate when importing a particular composite database file SPR 4798 Resolved a bug in which the end spacings of a connector were a value different than them SPR 1340 was specified for A bug was fixed which caused Gridgen to exit when journaling the extrusion of a domain an edge 5 13 Gridgen Version 15 08 Release Date J 0 New features included in V15 08 are listed below 1 Gridgen s elliptic PDE solver for structured domains and blocks n pports a multigrid algorithm 2 Unigraphics NX3 files may now be imported i an optional product ridgen Note The Unigraphics native file reader is 3 The minimum system requirements for Gridge V11 11 ild on PA RISC has been upgraded to The following is a listing of techni s resolved SPR 5096 Fixed an issue in which the b exported from Gridgen SPR 5090 r the WIND analysis software were being incorrectly Resolved a b ausing Gridgen to terminate when joining two structured domains SPR 508 A bug was reso was causing Gridgen to hang when attempting to auto complete a structured domain on a datab SPR 5075 When using the Pick In Box tool for database entity selection Gridgen was selecting more entities than tho
34. isplay Ive the issue A problem was resolved which was causing specific WINDUS files e WINDUS SPR 4803 d from Gridgen to fail within When setting the Split Angle for Feature Extractio from 0 to 180 degrees could be specified Gridgen split angle Gridgen s message for this feature has b SPR 4464 en displayed a message indicating that angles accepts angles between 0 and 180 degrees for the hanged for clarity Resolved an issue in which Software Set BCs Browser lis SPR 2420 on between a pair of domains was missing in the Analysis A bug was res was causing periodic connections and distributions to break when rotated or ion 15 07 Release Date May 2005 New features inc in V15 07 are listed below 1 Gridgen now supports IGES Export 2 Support has been added for the export of structured domains to an IGES file 3 Database curves can now be projected onto database surfaces 4 Trimmed surfaces can now be created and modified in Gridgen 5 CATIA V5 files may now be imported into Gridgen Note The CATIA V5 native file reader is an optional product 6 Gridgen s block unstructured solver now supports new attributes which provide control over the mini 5 15 Release Notes Version 15 mum and maximum tetrahedra edge lengths A decay factor is also available which controls how far into a volume the boundary cell sizes are propagated 7 Gridgen now reads the blank status during IGES file import
35. k 5 11 Gridgen Version 1 The following is a listing of tee ssues resolved in V15 09 Release 3 SPR 6227 Resolved a bug which caused Grid mand SPR 6138 o hang up when creating connectors using the On DB Entities com A problem the trimmed su face could not be SPR 6133 ith a database trimmed surface containing a hole with two bounding curves If odified so that the hole bounding curves were excluded the new trimmed sur Trimmed surface modification has been changed to fix this problem Exporting files for the NPARC flow solver would cause Gridgen to exit if custom boundary conditions were set to reserved boundary condition IDs Export for NPARC has been modified to correct this problem SPR 6132 For FLUENT case files exported from Gridgen corruption of the file would occur if baffle boundary condi tions were present Logic has been modified to correct this problem SPR 6102 A bug has been resolved in which projecting a database line appeared to do nothing Logic has been added to disable the Project button if no suitable surface entities are available 5 10 Gridgen Version 15 09 Release Date March 2006 SPR 6034 The Intersecting Pipes Top Down tutorial restart file contained within Gridgen had a structured block with a corrupt pole The restart file has been replaced to fix this problem SPR 6033 The Intersecting Pipes Bottom Up tutorial restart file contained within Gridgen had a structured block
36. l coordinates were aligned differently from the original Log SPR 4213 ed structured block whose compu een changed to fix this problem Fixed an issue in which the interior of an unstru tively large modifications to its connectors SPR 4178 was not being properly updated after rela Resolved a bug which was causing poor results for a lem occurred for both normal co SPR 4118 ain that was being copied then rotated This prob ell as for a periodically copying it through rotation Fixed an issue that was causi SPR 3752 ock unstructured solver to fail in initializing a volume Resolved a prob aused the zoom box to be sluggish and unresponsive for large grids ion 15 05 Release Date September 2004 New features 1 ed in Gridgen V15 05 are listed below 1 A 32 bit version of Gridgen is now supported on the HP UX 11 Itanium platform 2 Gridgen now supports the import of UG NX2 files via the Unigraphics Native CAD Reader Note The Unigraphics part file reader is an optional product 3 Gridgen now supports the import of Pro ENGINEER Wildfire2 files via the PRO E Native CAD Reader Note The Pro ENGINEER file reader is an optional product 4 Anew utility script is available DbImport Points g1f that allows a user to import x y z data from a segment file 5 Anew utility script is available LayerColorManager g1f that allows a user to assign a color from the color palette to a layer and its en
37. omposite dba file formed from combining several existing database and IGES files SPR 5217 Resolved a problem which was preventing a journaled Glyph script executing in Gridgen SPR 5209 A problem was resolved in which the DATABA ment of database entities to a layer SPR 5207 nd the cursor jumped during the assign Fixed a bug which during a rotati 1 database entities over rotated a set of database curves SPR 5201 Resolved an issue in which r FV UNS export were not written out correctly SPR 5200 The vector for li jection was not getting updated in the Blackboard during model manipulations Logic has be correct this problem Fixed an issu cause Gridgen to terminate when selecting a database group for copying using Pick By Text SPR 5182 Resolved a bug in which the connector information was not displayed in the Merge Entities Replace Con nectors Blackboard when a connector was highlighted SPR 5181 Resolved a bug in which the connector information was not displayed in the Redimension Grids Blackboard when a connector was highlighted SPR 5180 Fixed a bug which was keeping the split connector cursor location from being updated in the Display win dow when manipulated from the keyboard 5 13 Release Notes Version 15 SPR 5129 Information on how to turn on overlays for NVidia cards used in a Linux environment was missing from the Hardware Requirements chapter of the Release Notes This
38. onal prism extrusion created the extrusion domains but failed to save the prism block SPR 4730 Fixed a bug which caused an error message whenever a database line was intersected with a plane SPR 4726 Resolved a bug which was keeping the spacing constraint del s on a connector from being updated during the execution of a script SPR 4709 When merging connectors during block creation Gridgen was deleting the domains belonging to those con nectors Logic has been added to fix this problem 5 16 Gridgen Version 15 06 Release Date December 2004 SPR 4695 Gridgen was failing to pick up a user s prescribed QuickSave filename in the Gridgen initialization file Logic has been modified to correct this problem SPR 4686 Resolved a scripting bug in which setting the end spacing of a connector s subconnector would cause the script to fail SPR 4684 Fixed a scripting bug that caused true intersections to fail if the los option was not specified for gg dbInter sect SPR 4676 The ID number of database groups were not being returned when gg dispPick w d to select those enti ties during script execution Logic has been added to correct this problem SPR 4675 Resolved a bug in which the s_max option for gg blIkExtrusionAtt not be set to 0 0 SPR 4619 Fixed a bug which erased the database entity information presen ridgen Browser window when average points were kept from database point creation SPR
39. quire users to obtain a new license that is compati he new license server in Gridgen 5 The Defaults menu now contains a preference which controls whether the Examine command automati cally uses the diagnostic function chosen for ck or blocks in Examine for any new blocks brought into Examine 6 Two initial As values may now be applied to a mesher edge within Gridgen s anisotropic triangle The following is a listing of techni SPR 9413 When initializing an anisotro ogy zero volume cells were crea SPR 9380 ntained a corrupt domain with a local non manifold topol side of the block volume Logic has been added to correct this issue An issue in wh acting prisms for an anisotropic block containing periodic domains caused Gridgen to SPR 8923 Resolved an issue SPR 8506 ich prism extraction for an anisotropic block failed to produce two new blocks A bug has been fixed which caused Gridgen to exit when copying certain database surfaces SPR 8333 A bug was fixed in which extracting prisms from an anisotropic block corrupted the resulting blocks SPR 8195 Resolved an issue which was causing a database composite file to be imported with multiple errors concern ing its trimmed surfaces SPR 8172 5 8 Gridgen Version 15 10 Release Date March 2007 An issue was resolved in which anisotropic domain edges set to Isotropic would have highly skewed cells created from those edges SPR 8106 A b
40. rahedral meshes gen 7 Pointwise CAE export can now create prisms by recombination for anisotropic tetrahedral meshes gen erated in Gridgen that contain pyramids The following is a list of technical issues resolve SPR 13146 Resolved an issue in which exporting baffles to CFX dow SPR 12821 duced an error message in the Gridgen console win Fixed a bug that was causing initialized SPR 12359 to exit prematurely when a particular anisotropic tetrahedral block was When exporting en million nodes to Splitflow an issue was found with the format of the resulting en changed to correct this problem SPR 12336 Resolved an issue in which the Examine command was showing incorrect values for the minimum included skewness angle for pyramids SPR 12301 Fixed a bug that caused connectivity issues in a CGNS file exported from Pointwise containing prisms formed from prism recombination SPR 12300 Corrected the decimation of cells near a symmetry plane in an unstructured anisotropic tetrahedral block SPR 12223 Fixed a bug that caused Gridgen to exit prematurely if a surface of revolution was intersected with a bi linear surface 5 3 Release Notes Version 15 SPR 12193 Resolved an issue in which a cell spike was created within an unstructured domain SPR 11292 Fixed a bug that caused Gridgen to exit prematurely when connectors that were part of an existing unstruc tured domains and blocks were redimen
41. roblem has been fixed by revising the topology A problem schema wo SPR 1488 hich a STEP file containing the CONFIG CONTROL DESIGN AP203 operly into Gridgen When importing raw blocks from a Plot3D file Gridgen was sorting the blocks in the reverse order from how they were exported The logic which caused this issue has been fixed 5 21 Gridgen Version 15 00 June 2003 Gridgen Version 15 features three suites of tools that address specific meshing challenges For the manage ment of large and complex databases and grids a CAD style layer manager pick masks and grid groups have been added In order to more closely couple Gridgen with your analysis software support for volume conditions i e material IDs has been added including the ability to sort cells by VC type upon export Also Gridgen s Native CAD Readers have been made faster and more robust All of Gridgen Version 15 s new features are described in the following sections sorted by functionality 5 30 Gridgen Version 15 00 June 2003 Setting Defaults and Tolerances 5 21 1 Setting Defaults and Tolerances Defaults for the database pick masks may be set using the DB Pick Mask command 5 21 2 Graphical User Interface Pick masks may now be applied to database entity selection using the DB Pick Mask command You use pick masks to limit the types of database entities that are pickable For example you may want to only pick surface entities or only circular arcs
42. script Dom2DBEntity glf to be different depend w many domains were selected for conversion SPR 4335 Fixed a bug that caused problems when trying to start the NCR server on a SuSe Linux machine SPR 4331 Resolved a problem which was causing the import of Gridgen database dba and restart gg files to take much longer than normal on Windows 2000 machines SPR 4330 Logic was added to correct a bug that was causing Gridgen to split an STL file into many entities on import when no default split angle was specified SPR 4327 Fixed a bug in which Gridgen crashed when joining blocks then domains in a certain order 5 18 Gridgen Version 15 05 Release Date September 2004 SPR 4294 Resolved an issue that caused Gridgen to crash while importing an IGES file SPR 4276 Connector modifications in which the connector endpoints did not change were causing the Maintain Link ages prompt to appear Logic has been added to correct these cases SPR 4271 Fixed a problem that was causing bitmap images exported from Gridgen on Linux workstations to become corrupted SPR 4266 Resolved a bug that would not allow a user to export a self connecting structured bl FLUENT or CFX 5 SPR 4253 Resolved a bug that caused Gridgen to crash when trying to import a restart file associate database file containing an isolated empty layer SPR 4241 a composite Gridgen was found to crash when trying to re extrude a copy of tationa
43. se included in the box Logic has been modified in Gridgen to correct this issue SPR 5006 Blackboard text fields for Min Edge Length and Max Edge Length in the unstructured solver were not being updated after volume initialization Logic has been modified in Gridgen to correct this issue SPR 4992 An issue in which Gridgen would hang when projecting a structured domain via closest point projection onto a database surface with a singularity has been resolved 5 14 Gridgen Version 15 07 Release Date May 2005 SPR 4970 A bug was resolved which was causing Gridgen to exit when exporting an unstructured volume one cell thick for CFD SPR 4955 An issue was found in which modifying the original database constrained connector in a periodic pair removed its database associativity SPR 4931 Resolved a bug which was causing a connector in a domain with a fixed surface shape to come off the data base to which it was constrained when run through the elliptic solver SPR 4883 A problem with moving the zoom box was found to exist on Linux workstations graphics cards Logic has been modified within Gridgen to correct this issue SPR 4880 VIDIA Quadro A graphics issue was causing Gridgen to crash whenever the object 1 only occurred on machines with NVIDIA Quadro and Quadro FX drivers Logic has been modified in Gridgen s graphic user int SPR 4878 display was rotated This behavior ics cards running the latest d
44. sioned SPR 11087 Fixed a problem that caused an anisotropic tetrahedral block to fail to initialize due to intersecting tetrahe dra SPR 10883 Resolved an issue that caused poor quality cells to be created in a block that was copied and rotated 5 5 Gridgen Version 15 15 Release Date November The following is a list of new features included in V15 15 1 Improvements were made to the unstructured block solver so t isotropic tetrahedral cells when generated by Gridgen and exported by Pointwise to CGNS eco e up to 40 more prisms over the previous versions of Gridgen and Pointwise The following is a list of technical issues resolved in V15 15 SPR 12003 Resolved an issue that caused zero volume cells t initialized SPR 11934 hen an anisotropic tetrahedral block was A bug was fixed that caused the unst red block s ing a block SPR 11901 to pause for a long period of time when initializ An issue was fixed that cause ve volumes to be created in an unstructured block SPR 11884 A bug was fixed used V15 14 to extract less prisms from an anisotropic unstructured block than previ ous versions of Gridgen SPR 11851 A bug was fixed that caused connectivity issues between tetrahedral cells when a certain combination of anisotropic attributes were used within the unstructured block solver SPR 11757 Resolved an issue that kept the maximum cell height for an extrusion from being applied
45. sue reporting could not import tets SPR 14977 Fixed an issue in the Examine command which caused the Crinkle Cut feature to produce errors SPR 15019 5 1 Release Notes Version 15 Improved prism recombination by providing more control over volume checking SPR 15071 Added pyramid and prism quality checking via the Gauss Green volume formulation SPR 15084 Resolved a problem preventing import of a Gridgen restart in Pointwise SPR 15195 Corrected an issue resulting in combined pyramids and prisms with negative faces SPR 15226 the collision Improved pyramid collision adjustment to distribute changes more evenly on both sid SPR 15300 Fixed a problem causing a hang up following aniso layer generation SPR 15367 Resolved an issue causing inconsistent extraction of prism layers 5 3 Gridgen Version 15 17 Release Date The following is a list of new features included in V15 17 1 Gridgen now allows baffles to be selected in T for layer growth or other boundary types 2 Gridgen can now run connected T Rex block in the unstructured solver The following is a list of technical issues resolved 1 SPR 11496 Resolved an issue where anisotro SPR 12045 les could not be created off of a sharp edge Resolved an issue preventing s SPR 12666 ul anisotropic domain initialization Fixed an issue SPR 135 anisotropic cells to grow off of a connector edge Corrected a p
46. tities 6 Anew utility script is available ConBreakPtAt PercentArc gl1f that allows a user to add a 5 19 Release Notes Version 15 breakpoint to selected connectors at a percentage of the arclength from either end of the connector 7 Anew utility script is available ConSplitAtIsect g1f that allows a user to split two connectors at their approximate intersection point 8 Anew utility script is available DbDisplayManager g1f that allows users to select DB entities based on their type and modify their layer enabled disabled and display settings 9 Users can now extend the functionality of Glyph scripting by linking in their own C routines compiled as dynamic libraries Files are available within gridgen_home_path hw examples custom called README UNIX txt and README WIN32 txt that explain how to link and compile user libraries for the respective platforms 10 Two Glyph commands have been added that allow the layer manager panel to be displayed and layers selected during script playback 11 A new chapter on the basics of Glyph Tcl Tk scripting has been added to the Reference Manual The following is a listing of technical issues resolved in V15 05 SPR 4165 Resolved a bug that was causing periodic domains to become co after connector redimensioning SPR 4161 Fixed a bug which allowed non visible grid entities to be pickable SPR 4157 omain and block assembly When joining two blocks in a parti
47. uctured triangulation more robust in Gridgen 5 21 Release Notes Version 15 4 Certain layer operations may now be performed on individual or multiple layers via a right click menu in the Layer Manager panel The following is a listing of technical issues resolved in V15 04 SPR 4039 Resolved a bug which caused Gridgen to crash when creating database constrained connectors on shell enti ties SPR 4033 Analysis data exported via WIND US would not import correctly into WIND US The export has now been fixed so that the appropriate information is written out SPR 4032 NSAERO double precision export was exporting single precision instead of doub ic has been modi fied to fix this problem SPR 4020 Fixed a problem in which Pick In Box and Pick On Box could no BCs SPR 4012 sed in selecting domains to apply Resolved a bug that would not allow BCs to be set on a block create AutoSave Face enabled SPR 4009 Fixed a bug in which both sides of an unstructure Sides option was enabled SPR 4007 not meshed even though the Mesh Both Gridgen was crashing after playback ties deleted then the file was imp SPR 3996 Resolved a bug that did not al points SPR 3981 a script in wh segment file had been imported twice all its enti e more Logic has been added to fix this bug s to use Shift and the right mouse button to pick some connector Fixed a journ journaled SPR 3980
48. ug which was causing an initialized anisotropic domain to be disassociated with its database entities has been fixed SPR 7889 Resolved a bug which caused Gridgen to crash when a cylindrical trimmed surface was copied SPR 7870 When reentering Examine for blocks the previous function used in Examine was not being maintained A preference has been added to allow users to choose whether it is maintained or not SPR 7805 A bug was fixed in which the Layer Height settings were not being accuratel lie edges of an anisotropic domain SPR 7579 Extracting prisms from an anisotropic block were causing the ori b ary conditions set on the block to be moved to different faces Logic has been added to correc m SPR 7231 Resolved a bug that was causing issues with modifying a copy of a ruled surface with intersections SPR 5756 An issue was resolved in which all surfaces from e not imported into Gridgen 1 Gridgen s unstructured Ivers now support the creation of anisotropic triangles and tetrahedral cells easuring minimum component volumes has been added to the Examine com neasuring centroid skewness has been added to the Examine command s function 5 Inthe Examine function cells whose display have been turned off are no longer rendered 6 In Examine the function computed for a block is now set to None and the show status for cells in all ranges has been toggled off each time a block is brought into Examine
49. undary condition h which constrains the extru dgen s hyperbolic and normal extrusion attribute menus d s boundaries to the boundaries of selected database surfaces 4 Options have been included to the creation or modification of database constrained connectors that use the ing database surface s for the determination of connector grid point dimensioning and distr 5 Atogg to the Display Commands menu that controls whether or not disabled grid enti ties are d n toggled off disabled grid entities are not displayed except for when in the 6 Anew Glyph command has been added which provides the capability to image pan zoom and rotate while a glyph script is running 7 Anew Glyph command has been added which allows users to momentarily pause a running script to pick database connector domain block or breakpoint entities After the selection of entities is com plete the script resumes running 8 The number of custom boundary conditions BCs and volume conditions VCs that can be created in Gridgen has been increased to 500 9 The memory requirement for the export of large grids for CFD now takes considerably less memory 5 26 Gridgen Version 15 01 September 2003 10 Utility scripts have been added to the gridgen_home_path utils directory These scripts are provided for demonstration purposes and are not supported by Pointwise Inc Use or modification of these scripts are at the users discretion Information on t
50. using an anisotro ever one of the domain s connector s were redimen SPR 11544 in s ModTopo setting to be changed to 0 when d or redistributed Resolved an issue that caused Grid it prematurely when exporting grid and boundary condition data to a CFD file SPR 11434 An issue that prevented Gridgen fro nning on some linux workstations with NVIDIA graphics cards was resolved A bug was r used a fan of cells to be created in certain regions of anisotropic domains SPR 11360 Fixed an issue that prevented the volume condition information of an anisotropic block from being propa gated into its component tetrahedral and prism blocks during prism extraction SPR 11358 A bug which caused the tetrahedral block to be deleted during prism extraction for an anisotropic tetrahedral block has been resolved SPR 11307 Resolved a bug which caused Gridgen to exit prematurely when executing a certain Glyph script SPR 11298 Fixed an issue that resulted in mismatched cell faces within a CGNS file exported from Gridgen The CGNS 5 5 Release Notes Version 15 file contained tetrahedral and prism blocks that were extracted from an anisotropic block SPR 11293 Resolved a bug which kept Gridgen from checking for duplicate domains if prisms were extracted from an anisotropic block whose database was not present SPR 11149 An bug that kept blocks resulting from a prism extraction from being numbered properly within the

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