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Forum: CFX

May 18, 2010, 19:23

Replies: 11

Stable Boundary Conditions

Views: 3,268

Posted By ghorrocks

Trust me, the problem is caused by numerical...

Trust me, the problem is caused by numerical round off leading to a convergence problem.

Forum: CFX

May 18, 2010, 19:14

Replies: 11

Stable Boundary Conditions

Views: 3,268

Posted By ghorrocks

Numerical round-off. If you ran using double...

Numerical round-off. If you ran using double precision it probably would have worked. But the better solution is to set a reference pressure more representative of the flow average pressure, which is...

Forum: CFX

May 17, 2010, 18:46

Replies: 11

Stable Boundary Conditions

Views: 3,268

Posted By ghorrocks

The error message is simply saying you are trying...

The error message is simply saying you are trying to get a negative absolute pressure somehow. Based on the sketchy information you have provided I have no idea where, but somewhere in your setup you...

Forum: CFX

May 15, 2010, 07:01

Replies: 11

Stable Boundary Conditions

Views: 3,268

Posted By ghorrocks

Have you set the correct reference pressure? Is...

Have you set the correct reference pressure? Is your boundary pressure correct relative to the reference pressure?

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