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Forum: CFX

February 2, 2013, 05:02

Replies: 3

Is Mean Free Path useful in determining mesh resolution?

Views: 1,326

Posted By ghorrocks

What makes you think 1e-7s is small enough? One...

What makes you think 1e-7s is small enough? One of the commonest beginner mistakes is to use a time step which on the human scale is really small and to therefore assume that this is adequate for the...

Forum: CFX

January 31, 2013, 16:08

Replies: 3

Is Mean Free Path useful in determining mesh resolution?

Views: 1,326

Posted By ghorrocks

CFX is a Navier Stokes solver. This has no...

CFX is a Navier Stokes solver. This has no relation to mean free path as the NS equations assume a continuum. So mean free path tells you nothing about what is requierd to get this model to converge....

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