|
[Sponsors] |
[snappyHexMesh] Snappy Hex Mesh - Meshing Problem |
![]() |
|
LinkBack | Thread Tools | Search this Thread | Display Modes |
![]() |
![]() |
#1 |
New Member
Join Date: Nov 2018
Posts: 8
Rep Power: 7 ![]() |
Hi all. It is my first thread and I am sorry if I am unable to convey my information properly.
I am new to openfoam and I have started a simulation with heat transfer (chtMultiRegionFoam). My domain is very simple. I have thin rectangular rods with 10mm thickness. The fluid flows inside it. I am meshing the domain with snappy hex mesh. The problem is that the elements on some fluid domain are perfectly aligned but on some they are distorted (first pic). However, the outer surface of solid domain is perfectly aligned. The dimension of rod is 200*120mm. On one thread I have read that aspect ratio needs to be close at 1 for snappy hex mesh to work properly. So that's why I have used grading in z direction at both ends so that cell size in x, y and z axis will be same. fluid.JPG solid.JPG blockMesh Dict.txt SnappyHexMesh Dict.txt |
|
![]() |
![]() |
![]() |
![]() |
#2 |
Senior Member
|
Hello Muhammad,
SHM is really tricky and sensitive especially multi-region meshing. Even a small change in one parameter has big influence on meshing. Normally, this problem occurs when you have different refinement on both sides of interface. Try to have same cell size (refinement) across the interface and then after splitting the regions, you will not get distorted mesh. Regards. |
|
![]() |
![]() |
![]() |
Tags |
openfoam 5.0, snappy hex mesh |
|
|
![]() |
||||
Thread | Thread Starter | Forum | Replies | Last Post |
decomposePar problem: Cell 0contains face labels out of range | vaina74 | OpenFOAM Pre-Processing | 37 | July 20, 2020 05:38 |
[snappyHexMesh] About Non-conformal Mesh, Snappy Hex Mesh | Chaitanya2811 | OpenFOAM Meshing & Mesh Conversion | 0 | March 25, 2019 09:03 |
[blockMesh] Openfoam: Meshing, where do my defaultFaces come from | syntex | OpenFOAM Meshing & Mesh Conversion | 19 | December 10, 2018 07:21 |
[ICEM] Unstructure Meshing Around Imported Plot3D Structured Mesh ICEM | kawamatt2 | ANSYS Meshing & Geometry | 17 | December 20, 2011 11:45 |
CheckMeshbs errors | ivanyao | OpenFOAM Running, Solving & CFD | 2 | March 11, 2009 02:34 |