Van Der Waals EOS

Description:

van der Waals EOS module. To use this module iEOS=3 in physics.data

Subroutines:

vanderWaals.f90:

Desctiption:

Contains formulas for P,chi, and kappa given by Guardone and Vigevano: Journal of Computational Physics 175:50-78,2002

Variables:

Inputs:

Rho : Mass density in computational units : cgs units scaled by R_crit = 1/(3b)

Eth : Thermal energy density in computational units: cgs units also scaled by P_crit

Returns:

Pressure : Pressure in computational units : cgs units scaled by P_crit = a/(27b²) where a and b are van der Waals gas constants

dPdE : Derivative of pressure with respect to thermal energy density in computational units

dPdRho : Derivate of pressure with respect to mass density in computational units