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Numerical Study of Grüneisen State Equation and Applications
WANG Tinghui, SONG Shuncheng
CHINESE JOURNAL OF COMPUTATIONAL PHYSICS
2007, 24 (3):
361-366.
A computational scheme of Runge-Kutta method is presented for Grüneisen state equation with adiabatic impact relation.Thermodynamic state variables,including pressure,Grüneisen coefficient,cold pressure,cold energy and pressure,as a function of specific volume are calculated.Numerical states parameters of tungsten at high-pressure are given.The curves of γ~V,EK~V,PK~V,P~V of tungsten are obtained and the P~V result agrees well with the experiment.Numerical solutions of f(P,T,V1)=0 and f(P,T,V2)=0 in two compressive states show that the effect of temperature on pressure is less than that of specific volume.
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