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Forum: OpenFOAM Running, Solving & CFD

April 22, 2010, 01:02

Replies: 61

Courant Number become bigger and bigger!!!

Views: 11,843

Posted By alberto

It doesn't :-) Please open a new thread, and...

It doesn't :-)

Please open a new thread, and provide more information to increase the chances someone can help.

Best,

Forum: OpenFOAM Running, Solving & CFD

April 22, 2010, 00:59

Replies: 61

Courant Number become bigger and bigger!!!

Views: 11,843

Posted By alberto

You are fixing both velocity and pressure and...

You are fixing both velocity and pressure and velocity at the inlet for an incompressible flow (you use icoFoam). Let the inlet as is, but fix the pressure at the outlet, and set it to zeroGradient...

Forum: OpenFOAM Running, Solving & CFD

April 22, 2010, 00:53

Replies: 61

Courant Number become bigger and bigger!!!

Views: 11,843

Posted By alberto

A bit too broad as statement. Central schemes,...

A bit too broad as statement. Central schemes, largely used in LES also for the convective term, are unstable only if the local Péclet number is larger than 2.

Best,

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