|July 25, 2013, 11:30||
How to merge special mesh in ICEM CFD?
Join Date: Mar 2009
Posts: 40Rep Power: 8
I am simulating blood flow. The vessel has lots of complex branches. I hope to mesh the branch region with tetra and prism grid near the vessel wall. For the straight vessel region I want to mesh with hexa and o-grid.
I know without prism grid, it is easy to merge tetra and hexa. But when I merge tetra with prism and hexa with o-grid, ICEM CFD reports some errors.
So what to do next? I also wonder what the best grid is to mesh blood vessel?
|July 25, 2013, 12:13||
Ghazlani M. Ali
Join Date: May 2011
Blog Entries: 23Rep Power: 20
Because of prism, it is difficult to merge the two. I will go for tetra all over your geometry, check the hexa-core option it can help you get a structured domain inside.
New to ICEM CFD, try this document --> http://goo.gl/G2gkE
|July 26, 2013, 13:19||
TETRA/PRISM vs HEXA
Join Date: Jul 2013
Posts: 8Rep Power: 4
There is one possibility to get an 1:1 connection between a Hexa and a Tet/Prism mesh.
You have to use ANSYS Meshing (from ANSYS Workbench). You specify a Tetrahedral /Patch independet meshing for the hexa meshed body and change from the method the option "Write ICEM CFD File" to "Interactive". Also change "ICEM CFD Behavior" to "Override Method".
After that, if you mesh the body, ICEM CFD appears automatically. Now you have to import you blocking and update your associations. Every point and every curve of the geometry has to be associated to a vertex or edge.
When you have transformed to your unstructured mesh, you have to save the project and close ICEM CFD. After that, the mesh is imported to ANSYS Meshing.
The rest of the geometry can be meshed with the Patch Conforming Tetra mesher of the workbench, also using inflation layers.
If you have further questions, continue this blog and I can try to help you. It's not so easy to do that.
CFX Berlin Software GmbH
|Thread||Thread Starter||Forum||Replies||Last Post|
|Moving mesh||Niklas Wikstrom (Wikstrom)||OpenFOAM Running, Solving & CFD||122||June 15, 2014 06:20|
|No layers in a small gap||bobburnquist||OpenFOAM Native Meshers: snappyHexMesh and Others||2||November 25, 2012 09:54|
|Loading previously saved mesh in ICEM CFD||user0314||ANSYS Meshing & Geometry||1||September 20, 2011 12:46|
|[ICEM] Problem with volume mesh in ICEM CFD||kolapoasafa||ANSYS Meshing & Geometry||2||September 16, 2011 03:54|
|[ICEM] Export unstructured periodic mesh from ICEM CFD to Fluent||ivanddd||ANSYS Meshing & Geometry||1||February 3, 2011 01:51|