New equation of state models for hydrodynamic applications

Journal Article · Wed Jul 01 00:00:00 EDT 1998 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.55633· OSTI ID:295450

Young, D A; Barbee, III, T W; Rogers, F J ^[1]

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1. Physics Department, Lawrence Livermore National Laboratory, Livermore, California 94551 (United States)

Two new theoretical methods for computing the equation of state of hot, dense matter are discussed. The ab initio phonon theory gives a first-principles calculation of lattice frequencies, which can be used to compare theory and experiment for isothermal and shock compression of solids. The ACTEX dense plasma theory has been improved to allow it to be compared directly with ultrahigh pressure shock data on low-Z materials. The comparisons with experiment are good, suggesting that these models will be useful in generating global EOS tables for hydrodynamic simulations. {copyright} {ital 1998 American Institute of Physics.}

• Research Organization: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 295450
• Report Number(s): CONF-970707-; ISSN 0094-243X; TRN: 99:001686
• Journal Information: AIP Conference Proceedings, Vol. 429, Issue 1; Conference: Meeting of the topical group on shock compression of condensed matter of the American Physical Society, Amherst, MA (United States), 27 Jul - 1 Aug 1997; Other Information: PBD: Jul 1998
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
COMPRESSIBILITY
PLASMA
ALUMINIUM
DEUTERIUM
DIAMONDS
EQUATIONS OF STATE
SHOCK WAVES
ISOTHERMAL PROCESSES
HOT PLASMA
VERY HIGH PRESSURE
HYDRODYNAMICS
LATTICE VIBRATIONS