WIDE RANGE TABULAR EQUATION OF STATE FOR WATER

A. T. Sapozhniкоv, G. V. Kovalenko, P. D. Gershchuk, E. E. Mironоva
VANT. Ser. Mat. Mod. Fiz. Proc 1991. Вып.2. С. 15-19.

      Results of the GLOBUS tabular equation of state are given for describing thermodynamic water and vapor properties in a wide temperature and density range. Thermal pressure and energy components are represented by tables on a uniform logarithmic mesh with a bicubic interpolation between the nodes. Potential pressure is given by a cubic spline on a cubic spline on a uniform density mesh for densities less than normal one and on a uniform logarithmic mesh for densities greater than normal one.
      The equation of state describes experimental data for water and porous ice shock compression, thermal expansion and vaporization along with predicted results for the Thomas-Fermi model with quantum and exchange corrections. Thermodynamic water properties are taken for densities and temperatures ranging from 0,001 to 64 g/сm³ and from 300 К to 10⁶ К respectively. An extrapolation beyond the table is provided.
      The GLOBUS may be used in continuum dynamics programs.