The Rice and Walsh Equation of State for Water

Discussion, Limitations, and Extensions

by R. A. Papetti, Misako C. Fujisaki

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The equation of state of water developed by M. H. Rice and J. H. Walsh in 1957 is examined in detail for the purpose of constructing a set of equilibrium relations for water over a range of thermodynamic variables suitable for nuclear butst and hypervelocity calculations in water. Analytic expressions and quadratures for the numerical results for the enthalpy-pressure-volume and energy-pressure-volume relations to 450 kilobars and presents a method for extrapolating a strip of the enthalpy-pressure-volume and energy-pressure-volume surfaces containing the Hugoniot curve to the Thomas-Fermi region (assumed to have a minimum pressure of 10 megabars).

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