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Forum: CFX

October 16, 2009, 04:29

Replies: 5

Speed of sound (mesh movement)

Views: 2,082

Posted By AliAli

Hallo, Here is the expression: ...

Hallo,
Here is the expression:

(BulkModulus(Absolute Pressure))/((1500 [m/s]*1500 [m/s]))

BulkModulus: is function of pressure for the table in my post messege 1.

I could also send you the...

Forum: CFX

October 15, 2009, 09:12

Replies: 5

Speed of sound (mesh movement)

Views: 2,082

Posted By AliAli

Hallo, Thanks for your answer. I cheked the...

Hallo,

Thanks for your answer. I cheked the wave's velocity in post, it is also 578 (m/s). The density/pressure function that I used is:

c=(K/density)^0.5

C: speed of sound (1500 m/s) in...

Forum: CFX

October 15, 2009, 03:07

Replies: 5

Speed of sound (mesh movement)

Views: 2,082

Posted By AliAli

Speed of sound (mesh movement)

I used bulk modulus approach for defining the density for the model of piston movement.The bulk modulus is as a function of pressure (table below), then I used an expression for calculating densiyt...

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