Water constant value properties

An example is given below:

EOS WATER
  SURFACE_DENSITY 1000.0 kg/m^3
  DENSITY CONSTANT 997.16d0 kg/m^3
  ENTHALPY CONSTANT 1.8890d0
  VISCOSITY CONSTANT 8.904156d-4
END

The units are optional, if not entered they default to density_units = kg/m^3 enthalpy_units = J/kmol viscosity_units = Pa.s