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Help!! calculate gas density by ideal gas law

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Old   January 24, 2010, 09:36
Default Help!! calculate gas density by ideal gas law
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Hello everyone
I want to calculate density of single gas by ideal gas law. In the polic of phoenics, the density was calculated by formula RHO1B*(p1+PRESS0)/(t1+TEMP0), where RHO1B was seemed to be the only parameter that should be given. However, when I choose ideal gas option in the material menu, there were anorther parameter which was GAMMA also should be given. I was very puzzled about the meaning of GAMMA. Could anyone give me a hint?
Thank you very much
Ma He
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Old   January 26, 2010, 04:57
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Hello Ma He,
itīs quite easy Gamma is the adiabatic index.
Gamma = Cp/Cv
where Cv is the specific heat at constant Volume and Cp is the specific heat at constant Pressure.

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