|April 14, 2012, 13:51||
very fragile mesh motion on SnappyHexMesh generated mesh
Join Date: Apr 2009
Posts: 62Rep Power: 8
i am trying to simulate the motion of a boat under the hydrodynamic forces, at the moment just sink & trim DoF, using a mesh generated by SnappyHexMesh (no prism layers).
As motion solver I am using laplaceFaceDecomposition with quadratic inverse distance motion diffusivity.
After a very small motion (less than 1 degree rotation and small sink), the mesh becomes invalid. I have some negative volume cells, inverse pyramids, etc etc...
Is it my fault somehow, or are the SHM meshes too "fragile" to be moved by laplace-based motion solvers?
What is your experience with moving SHM meshes ?
|Thread||Thread Starter||Forum||Replies||Last Post|
|3D Hybrid Mesh Errors||DarrenC||ANSYS Meshing & Geometry||11||August 5, 2013 06:42|
|Dynamic moving mesh||Pei-Ying Hsieh (Hsieh)||OpenFOAM Running, Solving & CFD||64||June 7, 2012 10:04|
|2D Mesh Generation Tutorial for GMSH||aeroslacker||Open Source Meshers: Gmsh, Netgen, CGNS, ...||12||January 19, 2012 04:52|
|mesh motion||samad87||FLUENT||0||August 6, 2009 03:15|
|How to control Minximum mesh space?||hung||FLUENT||7||April 18, 2005 09:38|