|March 2, 2011, 05:48||
Problem/ bug in mesh.cellCells() ??
Join Date: Feb 2011
Location: Munich, Bavaria
Posts: 3Rep Power: 6
I'm just working on a general possibility to refine locally on a selection of the mesh (blockMesh with refinementIterator - no hexref8). Since I have higher refinement levels I need to lay some buffer-layers around the selection in order to ensure 2:1 refinement. For this purpose I use the cellCells() function in multiple iterations.
My problem is that cellCells() does not recognize correctly all neighbours of already refined cells (The refinement history I have implemented works fine and has no bugs) .
I'll give a little example:
- 8 cells (= refinement level 3) on the west side of a simple refined cell (= 2 cells f.e. cell A and B).
- this should give cell A as eastern neighbour for four of the tripple refined cells and cell B for the other four cells
- instead of this cellCells returns only cell A as eastern neighbour for all eight cells!!
And now the really confuseing problem:
This bug is not reproduceable for all meshes in all cases, since the correct recognition of all neighbours works fine in the mesh of forwardStep (tutorials/compressible/rhoCentralFo...), but not in the mesh of counterFlow2D (tutorials/combustion/reactingFoam...) . I have no idea if the bug is caused by different mesh setups (I did not find any significant differences)?!?
I would really appreciate it if anyone who has deeper insight into the cellCells() - function could give me a hint.
Please do not puzzle any longer!
Problem is solved: I forgot to update the primitive mesh after each buffering iteration
Last edited by daZigeiner; March 2, 2011 at 11:03. Reason: Problem solved
|May 18, 2015, 15:54||
Join Date: Mar 2009
Location: Lisbon, Portugal
Blog Entries: 34Rep Power: 93
daZigeiner did edit the post and add this to the end of it:
|cellcells, cellcells(), cells, mesh, neighbours|
|Thread||Thread Starter||Forum||Replies||Last Post|
|UDF compiling problem||Wouter||Fluent UDF and Scheme Programming||6||June 6, 2012 04:43|
|Problem Importing Geometry ProE to CFX||fatb0y||CFX||3||January 14, 2012 20:42|
|natural convection problem for a CHT problem||Se-Hee||CFX||2||June 10, 2007 06:29|
|Adiabatic and Rotating wall (Convection problem)||ParodDav||CFX||5||April 29, 2007 19:13|
|convergence problem||Trushar||Phoenics||5||August 27, 2002 23:40|