Contents Chapter 12: Real Fluid Properties | 12.8. Parameters in the .rgp File Controlling the Real Gas Model | Print page 12.8.6. GAS_CONSTANTThe material gas constant is used, along with the universal gas constant to compute the molar mass. This is required by the flow solver. « 12.8.5. MOLECULAR_VISCOSITY, MOLECULAR_CONDUCTIVITY 12.8.7. TMIN_SATURATION, TMAX_SATURATION »