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Entropy equation as a fourth equation (5th in 3D)

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Old   April 6, 2009, 18:04
Default Entropy equation as a fourth equation (5th in 3D)
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I am looking for reference on using the entropy equation ( i.e. second law) as the final equation for the N.S. instead of the internal energy E or the primitive variable ( Temperature T)...

In particular I am interested on possible closures for the problem or in other words how to compute Temp and Press from a entropy variation Ds.

at the moment i am going with


I would appreciate if anyone knows some papers/references
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