Mechanical EOS with reference curve and heat capacity

type name

mechtherm

parameters

equation_of_state
reference_temperature
reference_energy
specific_heat_capacity

where the equation of state is any EOS form, and the reference temperature and energy and specific heat capacity are any Realfunction1ds of density. (The reference curve is defined here as the variation of specific internal energy and temperature with density.)

For temperatures with respect to a reference isotherm, the temperature is (of course) independent of density, e.g.

   constant 293.0