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Forum: Main CFD Forum

March 18, 2013, 13:01

Replies: 11

Opening Boundary Condition

Views: 5,499

Posted By FMDenaro

you have to distinguish between the correct...

you have to distinguish between the correct mathematical BC and its consequent physical meaning.
For incompressible flows you can prescribe either velocity or pressure to have the problem well...

Forum: Main CFD Forum

March 18, 2013, 10:00

Replies: 11

Opening Boundary Condition

Views: 5,499

Posted By FMDenaro

if the flow is modelled as incompressible, you...

if the flow is modelled as incompressible, you can set also some bc. on the velocity instead of pressure, for example setting a vanishing second derivative. If the flow is fully compressible, you...

Forum: Main CFD Forum

March 18, 2013, 08:00

Replies: 11

Opening Boundary Condition

Views: 5,499

Posted By FMDenaro

I don't understand your flow problem...what about...

I don't understand your flow problem...what about your computational domain and the forces driving the main flow?

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