|
[Sponsors] |
[snappyHexMesh] orthogonal cells marked as nonOrthogonal |
|
LinkBack | Thread Tools | Search this Thread | Display Modes |
November 21, 2013, 08:30 |
orthogonal cells marked as nonOrthogonal
|
#1 |
Senior Member
Join Date: Aug 2010
Location: Groningen, The Netherlands
Posts: 216
Rep Power: 18 |
Hi Foamers,
I have some troubles with cells which are marked as nonOrthogonal but are according to my interpretation perfectly orthogonal. checkMesh says maxOrth: 75.xxx with 10k cells in a mesh of 3.1M cells. I'm using LTSInterfoam in a more or less simple channel flow with a ship. The cells causing troubles are created with a refinementBox in sHM If somebody could give me an explanation to that phenomena and maybe an explanation on how I can avoid them, would be great. See attached some pictures which should illustrate the problem: NonOrthoFaces_1.jpg NonOrthoFaces_2.jpg NonOrthoFaces_3.jpg NonOrthoFaces_5.jpg NonOrthoFaces_7.jpg If you have further questions or need more information let me know regards Colin |
|
November 21, 2013, 08:31 |
|
#2 |
Senior Member
Join Date: Aug 2010
Location: Groningen, The Netherlands
Posts: 216
Rep Power: 18 |
|
|
January 22, 2014, 09:24 |
|
#3 |
Senior Member
Gerhard Holzinger
Join Date: Feb 2012
Location: Austria
Posts: 339
Rep Power: 28 |
Only the cells that lie between different levels of refinement are affected, right? This is caused by the hanging nodes introduced by the mesher in order to achieve the refinement.
Check this post http://www.cfd-online.com/Forums/ope...tml#post452712 The cells fall into checkMesh's definition of a non-orthogonal cell although the cell - to the user - seems perfectly orthogonal. |
|
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
[snappyHexMesh] SnappyHexMesh Problem | 96faizizzuddin | OpenFOAM Meshing & Mesh Conversion | 10 | October 10, 2022 06:45 |
cellZone not taking all the cells inside | rahulksoni | OpenFOAM | 0 | January 16, 2019 01:16 |
[snappyHexMesh] SnappyHexMesh for internal Flow | vishwa | OpenFOAM Meshing & Mesh Conversion | 24 | June 27, 2016 08:54 |
snappyHexMesh in parallel - FOAM Fatal IO Error | mturcios777 | OpenFOAM Running, Solving & CFD | 4 | August 10, 2012 19:18 |
Position of cells in a orthogonal grid | alberto | OpenFOAM Running, Solving & CFD | 2 | February 6, 2008 12:28 |