|
[Sponsors] |
[mesh manipulation] polyDualMesh, create a tetrahedral mesh from a polyhedral mesh |
![]() |
|
LinkBack | Thread Tools | Search this Thread | Display Modes |
![]() |
![]() |
#1 |
Member
Join Date: Aug 2010
Posts: 31
Rep Power: 16 ![]() |
Hi,
I am using polyDualMesh and finally I get a polyhedral Mesh, but I need a tetrahedral Mesh. Is there a posibility in OpenFoam to create a tetrahedral Mesh by using polyDualMesh or is there a way to create a tetrahedral Mesh from a polyhedral Mesh? Thanks for any hint, M. |
|
![]() |
![]() |
![]() |
![]() |
#2 |
Senior Member
Olivier
Join Date: Jun 2009
Location: France, grenoble
Posts: 272
Rep Power: 18 ![]() |
hello,
You can't create a tetrahedral Mesh from a polyhedral Mesh, since it does exactly the opposite. And if you run polyDualMesh twice, you get the dual of the polymesh, which is again a polyhedral mesh. If you want a thetrahedral mesh, look at netgen (with salome) / gmsh / engrid /... regards, olivier |
|
![]() |
![]() |
![]() |
![]() |
#3 |
Member
Join Date: Aug 2010
Posts: 31
Rep Power: 16 ![]() |
Hi,
thanks for your quick answer, but I don't agree, that it is not possible to create a tetrahedral grid from a polyhedral grid. It is always possible to split a polyhedron into a set of tetrahedrons. (The reason why I'm using polyDualMesh is because the cell centres should become my new grid points for some reason.) I have found in openfoam-1.6-ext the application "tetDecomposition", but this application adds additional points. B.r. Martin. |
|
![]() |
![]() |
![]() |
![]() |
#4 |
Member
Join Date: Nov 2010
Location: Tokyo / Japan
Posts: 40
Rep Power: 16 ![]() |
Hello Martin,
did you find a way to convert your polyhedral mesh into a tetrahedral mesh? Please let me know ![]() Best, Hanzo |
|
![]() |
![]() |
![]() |
![]() |
#5 | |
Retired Super Moderator
Bruno Santos
Join Date: Mar 2009
Location: Lisbon, Portugal
Posts: 10,981
Blog Entries: 45
Rep Power: 129 ![]() ![]() ![]() ![]() ![]() ![]() |
Greetings to all!
@Hanzo - I think the solution he probably used was this: Quote:
The need for adding new points should be rather simple: without new points, the boundaries are not preserved, if the cell centers are used as vertexes for the tetrahedral mesh. Best regards, Bruno
__________________
|
||
![]() |
![]() |
![]() |
![]() |
#6 | |
Member
Join Date: Nov 2010
Location: Tokyo / Japan
Posts: 40
Rep Power: 16 ![]() |
Quote:
|
||
![]() |
![]() |
![]() |
Thread Tools | Search this Thread |
Display Modes | |
|
|
![]() |
||||
Thread | Thread Starter | Forum | Replies | Last Post |
sliding mesh problem in CFX | Saima | CFX | 46 | September 11, 2021 07:38 |
decomposePar problem: Cell 0contains face labels out of range | vaina74 | OpenFOAM Pre-Processing | 37 | July 20, 2020 05:38 |
tetrahedral to polyhedral mesh | m zahid | FLUENT | 1 | October 26, 2015 15:57 |
Moving mesh | Niklas Wikstrom (Wikstrom) | OpenFOAM Running, Solving & CFD | 122 | June 15, 2014 06:20 |
[ICEM] how to create a 2d tri mesh with quad mesh in the boundary layer | seal2013 | ANSYS Meshing & Geometry | 3 | October 6, 2013 16:09 |