A Mie-Gruneisen Equation of State for ICF Applications
POSTER
Abstract
We develop and test a relatively simple Mie-Grunesen equation of state (EOS) that incorporates a condensed matter -- vapor change of phase for possible application in inertial confinement fusion (ICF) calculations. The pressure and energy equations are polynomial functions of temperature and volume that self-consistently model molecular repulsion and attraction. These EOS are uniquely characterized by only four parameters (e.g., critical point, and coherence energy); additional data provides self-consistency tests. Characterizing parameters and self-consistency tests are collected for a variety of materials with special attention to the metal Beryllium and the molten salt Flibe (LiF-BeF$_{2})$.
Authors
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Shane Walton
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Don Lemons
Los Alamos National Laboratory
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Robert Peterson
Los Alamos National Laboratory