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Forum: OpenFOAM Running, Solving & CFD

March 23, 2012, 13:55

Replies: 5

ico only running with a crazy small time step

Views: 1,076

Posted By tellico

Thanks for the suggestion. I will look for...

Thanks for the suggestion. I will look for examples of the fvScheme that you suggest. I'm currently using the following fvScheme:

ddtSchemes
{
default Euler;
}

gradSchemes
{

Forum: OpenFOAM Running, Solving & CFD

March 23, 2012, 10:57

Replies: 5

ico only running with a crazy small time step

Views: 1,076

Posted By tellico

thanks for the reply, my max velocity is...

thanks for the reply, my max velocity is reasonable, but I'm now wondering if I haven't messed something up in my U file:

dimensions [ 0 1 -1 0 0 0 0 ];

internalField uniform ( 0 0 0 );...

Forum: OpenFOAM Running, Solving & CFD

March 23, 2012, 06:41

Replies: 5

ico only running with a crazy small time step

Views: 1,076

Posted By tellico

ico only running with a crazy small time step

I am running a model of flow in a pretty basic channel (2m wide x 4 m in length x 4m tall) and I can only keep the Courant number in check if I run it with a time step of 1e-16.

My block mesh...

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