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Forum: Main CFD Forum

June 19, 2017, 16:26

Replies: 3

Cfl

Views: 921

Posted By FMDenaro

It is not a "desired" value but it is constrained...

It is not a "desired" value but it is constrained by the numerical stability. It depends on the type of discretization. A classical constraint is cfl<=1, valid for some explicit schemes.

Forum: Main CFD Forum

June 19, 2017, 09:55

Replies: 3

Cfl

Views: 921

Posted By FMDenaro

I do not understand your question ... the CFL is...

I do not understand your question ... the CFL is a numerical parameter for the numerical stability constraint. It depends on the mesh sizes (3d), time step and velocity components. It is combined...

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