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Forum: CFX

January 5, 2015, 04:27

Replies: 7

Putting Boundary Conditions in ANSYS CFX 12.1

Views: 3,732

Posted By ghorrocks

Maybe I have not read the thesis in enough detail...

Maybe I have not read the thesis in enough detail but I cannot see anywhere where it says the outlet boundary condition is p=dP/dX=0. In section 4.2.1 it describes the impedance boundary condition as...

Forum: CFX

January 4, 2015, 16:47

Replies: 7

Putting Boundary Conditions in ANSYS CFX 12.1

Views: 3,732

Posted By ghorrocks

It's just a hunch, I will let you do the detailed...

It's just a hunch, I will let you do the detailed work :)

Take the current pressure and using Bernoulli work out the velocity you need to have zero pressure. Apply that velocity as a source term....

Forum: CFX

January 3, 2015, 22:44

Replies: 7

Putting Boundary Conditions in ANSYS CFX 12.1

Views: 3,732

Posted By ghorrocks

CFX does not have this boundary condition. CFX...

CFX does not have this boundary condition. CFX can set a specified pressure, but the dP/dX is set by the convected fluid values, not an artificial imposed gradient condition. In my opinion the CFX...

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