|August 26, 2014, 07:47||
Problem to run flow around a cylinder - LES case
Join Date: Jan 2014
Posts: 9Rep Power: 3
I work on a LES case of a flow around a circular cylinder. I have already set all OpenFOAM files, but I have problems to run it.
The geometry is a 3D parallelogram which has inside a circular cylinder, so there is an input face, an output face, an up and a bottom faces and a left and a right faces. The "left&right" face has cyclic type.
I did the mesh by gmsh and I imported it using "gmshToFoam" command. I modified the patch inside the constant/polymesh/boundary file:
- left&right type cyclic;
- (body) Wall type wall
then I used "foamUpgradeCyclics" command that created new files inside the 0/ directory. The I used the "decomposePar" command to decompose the domain, but here it is the problem:
--> FOAM FATAL ERROR:
face 0 area does not match neighbour by 23.2157% -- possible face ordering problem.
patch:Left&Right_half0 my area:4.4218e-08 neighbour area:3.50202e-08 matching tolerance:0.0001
Mesh face:1027210 fc-0.00840603 -0.00188235 0.0005)
Neighbour fc0.0142184 0.00530556 0.0005)
If you are certain your matching is correct you can increase the 'matchTolerance' setting in the patch dictionary in the boundary file.
Rerun with cyclic debug flag set for more information
|cyclic boundaries, cyclic boundary, cyclic patch, large eddy simulation, openfoam 2.1|
|Thread||Thread Starter||Forum||Replies||Last Post|
|Run A propeller case with AMI and not accelerated flow behind the blades...||reza1980||OpenFOAM||6||September 11, 2013 03:09|
|convergence problem when use pisoFoam, LES for wind tunnel case||Forrest_Lei||OpenFOAM||3||July 19, 2011 06:00|
|Flow around a cylinder in chapter 3 of OF Programer's Guide can not run with OF 1.6||universez||OpenFOAM Bugs||3||September 11, 2010 21:46|
|problem when I run the case||Rui||CD-adapco||1||February 1, 2007 07:25|
|batch file script to run unsteady flow (les)||andi||FLUENT||0||April 20, 2004 03:50|