Complete equation of state for shocked liquid nitrogen: Analytical developments

Winey, J. M.; Gupta, Y. M.

doi:10.1063/1.4959770

Complete equation of state for shocked liquid nitrogen: Analytical developments

Journal Article · Tue Aug 02 04:00:00 EDT 2016 · Journal of Chemical Physics

DOI:https://doi.org/10.1063/1.4959770· OSTI ID:1334538

^[1]; Gupta, Y. M. ^[2]

Washington State Univ., Pullman, WA (United States). Inst. for Shock Physics; Institute for Shock Physics, Washington State University
Washington State Univ., Pullman, WA (United States). Inst. for Shock Physics

The thermodynamic response of liquid nitrogen has been studied extensively, in part, due to the long-standing interest in the high pressure and high temperature dissociation of shocked molecular nitrogen. Previous equation of state (EOS) developments regarding shocked liquid nitrogen have focused mainly on the use of intermolecular pair potentials in atomistic calculations. Here, we present EOS developments for liquid nitrogen, incorporating analytical models, for use in continuum calculations of the shock compression response. The analytical models, together with available Hugoniot data, were used to extrapolate a low pressure reference EOS for molecular nitrogen [Span, et al., J. Phys. Chem. Ref. Data 29, 1361 (2000)] to high pressures and high temperatures. Using the EOS presented here, the calculated pressures and temperatures for single shock, double shock, and multiple shock compression of liquid nitrogen provide a good match to the measured results over a broad range of P-T space. Our calculations provide the first comparison of EOS developments with recently-measured P-T states under multiple shock compression. The present EOS developments are general and are expected to be useful for other liquids that have low pressure reference EOS information available.

View Accepted Manuscript (DOE)

Research Organization:: Washington State Univ., Pullman, WA (United States). Institute for Shock Physics

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA), Office of Defense Programs (DP) (NA-10)

Grant/Contract Number:: NA0002007

OSTI ID:: 1334538

Alternate ID(s):: OSTI ID: 1280199

Journal Information:: Journal of Chemical Physics, Journal Name: Journal of Chemical Physics Journal Issue: 5 Vol. 145; ISSN 0021-9606

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

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