[Subhasree]

Hi Everyone!,

I have been trying to mesh using snappyHexMesh a rectangular domain with a cylinder inside. Although I was able to mesh it, the surface mesh is not that good. Also the edges with layers are having bad elements. I will be using icoLagrangianFoam solver and good surface mesh is important.

I am attaching the snappyHexMesh file.

Can anyone look through this and tell me what can i modify to improve the mesh quality.

Thanks in advance

Regards
Subhasree

[Vignesh2508]

I got the following error when i tried to get the .eMesh file from the .stl file. Is there any problem with my openfoam installation. Do I need to reinstall the entire thing once again?

$ surfaceFeatureExtract -includedAngle 150 -writeObj constant/triSurface/airfoil.stl airfoil

Usage: surfaceFeatureExtract [OPTIONS]
options:
  -case <dir>       specify alternate case directory, default is the cwd
  -dict <file>      read control dictionary from specified location
  -noFunctionObjects
                    do not execute functionObjects
  -srcDoc           display source code in browser
  -doc              display application documentation in browser
  -help             print the usage

extract and write surface features to file

Using: OpenFOAM-3.0.1 (see www.OpenFOAM.org)
Build: 3.0.1-d8a290b55d28



--> FOAM FATAL ERROR: 
Wrong number of arguments, expected 0 found 3
Invalid option: -writeObj
Invalid option: -includedAngle


FOAM exiting

Can anyone explain the reason i am getting this error message?

[Antimony]

Hi,

Your format for surfaceFeatureExtract is based on OF-2.1 and possibly older.

The new ones from OF-2.2 require a surfaceFeatureExtractDict where you specify the includedAngle and the like...

Cheers,
Antimony