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Bulk modulus, ANSYS CFD

Thread starter torrot
Start date Jul 16, 2005

Status: Not open for further replies.

Jul 16, 2005

torrot

Aerospace

I don't understand about when I need to input the bulk modulus in ANSYS CFD. From my current knowledge (which is maybe wrong), it should be needed when compressibility is activated (incom = 1E15, tell me if i'm wrong somewhere). But bulk modulus should be varied by pressure and tempreature. And even thought we were not input it, the bulk modulus should have been able to calculated from gramma(Cp/Cv)*P(pressure) for air.

In brief, I really wannt to know when I need to input bulk modulus in CFD (i'm using ansys).

Thanks in advance