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On The Helmholtz Free Energy




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Contact us:
J.D. Maldonado
F.X.Timmes, my vitae
This journal article discusses the characteristics of the Helmholtz. EOS.
Code for the Helmholtz equation of state is given here

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Pressure differences 		Absolute value of the difference from the exact Timmes EOS for the scalar pressure. image
Energy differences 		Absolute value of the difference from the Timmes EOS for the specific internal energy.
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Entropy differences 		Absolute value of the difference from the Timmes EOS for the specific entropy. image
dP/dT differences 		Absolute value of the difference from the Timmes EOS for dP/dT.
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dE/dT differences 		Absolute value of the difference from the Timmes EOS for dE/dT. image
dS/dρ differences 		Absolute value of the difference from the Timmes EOS for dS/dρ.
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Thermodynamic consistency 1 		Deviation of the relation dE/dT = T dS/dT. for the Timmes and Helmholtz EOS. image
Thermodynamic consistency 2 		Deviation of P = ρ2 dE/dρ + T dP/dT for the Timmes and Helmholtz EOS.
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Thermodynamic consistency 3 		Deviation of the relation -dS/dρ = 1/ρ2 dP/dT for the Timmes and Helmholtz EOS.