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Forum: OpenFOAM

January 24, 2011, 11:23

Replies: 20

simpleFoam always diverges

Views: 8,622

Posted By FelixL

Hello, Martin, judging from your...

Hello, Martin,

judging from your nut-plot, the eddy viscosity is way too high (like I suspected). Please select a value for the turbulent length scale L, which is much more reasonable. 0.65m is...

Forum: OpenFOAM

January 20, 2011, 11:08

Replies: 20

simpleFoam always diverges

Views: 8,622

Posted By FelixL

Hello, Martin, could you post a contour...

Hello, Martin,

could you post a contour plot of the eddy viscosity (nut) and the other turbulent quantities with numerical scales, please? Might give a better idea about the much too high drag...

Forum: OpenFOAM

January 19, 2011, 11:44

Replies: 20

simpleFoam always diverges

Views: 8,622

Posted By FelixL

Hello, RugbyGandalf, your checkMesh looks...

Hello, RugbyGandalf,

your checkMesh looks OK, so there probably isn't a problem related to the mesh.

Have you already tried running the case without turbulence modeling?

Thanks for posting...

Forum: OpenFOAM

January 19, 2011, 04:18

Replies: 20

simpleFoam always diverges

Views: 8,622

Posted By FelixL

Hello, RugbyGandalf, does your case run...

Hello, RugbyGandalf,

does your case run with turbulence switched off (i.e. laminar)? If so, it's most likely the turbulence model causing trouble.

Can we have the results of a checkMesh run...

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