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相关论文: One-dimensional radiation-hydrodynamic simulations…

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One-dimensional radiation-hydrodynamic simulations are performed to develop insight into the scaling of stagnation pressure with initial conditions of an imploding spherical plasma shell or "liner." Simulations reveal the evolution of…

等离子体物理 · 物理学 2011-08-03 T. J. Awe , C. S. Adams , J. S. Davis , D. S. Hanna , S. C. Hsu , J. T. Cassibry

Numerical simulations of compressible fluid flows require an equation of state (EOS) to relate the thermodynamic variables of density, internal energy, temperature, and pressure. A valid EOS must satisfy the thermodynamic conditions of…

计算物理 · 物理学 2009-11-11 Gary A. Dilts

We construct a new equation of state (EOS) for numerical simulations of core-collapse supernovae and neutron-star mergers based on an extended relativistic mean-field model with a small symmetry energy slope $L$, which is compatible with…

核理论 · 物理学 2020-03-17 Hong Shen , Fan Ji , Jinniu Hu , Kohsuke Sumiyoshi

By implementing widely-used equations of state (EOS) from Lattimer & Swesty (LS) and H. Shen et al. (SHEN) in core-collapse supernova simulations, we explore possible impacts of these EOS on the post-bounce dynamics prior to the onset of…

高能天体物理现象 · 物理学 2015-03-20 Yudai Suwa , Tomoya Takiwaki , Kei Kotake , Tobias Fischer , Matthias Liebendoerfer , Katsuhiko Sato

We report a theoretical equation of state (EOS) table for boron across a wide range of temperatures (5.1$\times$10$^4$-5.2$\times$10$^8$ K) and densities (0.25-49 g/cm$^3$), and experimental shock Hugoniot data at unprecedented high…

This work presents scaling relations for the peak thermal pressure and stagnation time (over which peak pressure is sustained) for an imploding spherical plasma liner formed by an array of merging plasma jets. Results were derived from…

等离子体物理 · 物理学 2013-03-19 J. T. Cassibry , M. Stanic , S. C. Hsu

The equation of state (EOS) of a low-density porous substance plasma is proposed in the form of continuous media EOS containing, as a pressure control parameter, the degree of plasma homogenization, which is function of the initial porous…

等离子体物理 · 物理学 2023-06-28 S. Yu. Guskov , R. A. Yakhin

The recent development of techniques for laser-driven shock compression of hydrogen has opened the door to the experimental determination of its behavior under conditions characteristic of stellar and planetary interiors. The new data probe…

天体物理学 · 物理学 2015-06-24 D. Saumon , G. Chabrier , D. J. Wagner , X. Xie

We construct the equation of state (EOS) of dense matter covering a wide range of temperature, proton fraction, and density for the use of core-collapse supernova simulations. The study is based on the relativistic mean-field (RMF) theory,…

高能天体物理现象 · 物理学 2012-03-26 H. Shen , H. Toki , K. Oyamatsu , K. Sumiyoshi

We generate a new complete equation of state (EOS) of nuclear matter for a wide range of temperatures, densities, and proton fractions ready for use in astrophysical simulations of supernovae and neutron star mergers. Our previous two…

太阳与恒星天体物理 · 物理学 2015-03-17 G. Shen , C. J. Horowitz , S. Teige

The equation of state (EOS) of materials at warm dense conditions poses significant challenges to both theory and experiment. We report a combined computational, modeling, and experimental investigation leveraging new theoretical and…

Equation-of-state (EOS) models underpin numerical simulations at the core of research in high energy density physics, inertial confinement fusion, laboratory astrophysics, and elsewhere. In these applications EOS models are needed that span…

数据分析、统计与概率 · 物理学 2022-10-28 Jim A Gaffney , Lin Yang , Suzanne Ali

The hard sphere system plays a basic role in condensed matter physics and related fields, and equation of state (EoS) is the ultimate solution to its thermodynamic properties (1-3). Dozens of EoSs have been proposed since van der Waals…

统计力学 · 物理学 2007-05-23 Hongqin Liu

We study characteristics of the relativistic equation of state (EOS) for collapse-driven supernovae, which is derived by relativistic nuclear many body theory. Recently the relativistic EOS table has become available as a new complete set…

核理论 · 物理学 2015-06-26 K. Sumiyoshi , H. Suzuki , S. Yamada , H. Toki

The temperature of the interstellar medium (ISM) is governed by several physical process, among which radiative cooling, external UV/cosmic ray heating, and the mechanical work by compression and expansion. In regimes where the dynamical…

星系天体物理 · 物理学 2024-01-19 Yueh-Ning Lee

We propose a means for constructing highly accurate equations of state (EOS) for elemental solids and liquids essentially from first principles, based upon a particular decomposition of the underlying condensed matter Hamiltonian for the…

材料科学 · 物理学 2009-11-07 Eric D. Chisolm , Scott D. Crockett , Duane C. Wallace

Equations of state (EOS) calculated from a computationally efficient atom-in-jellium treatment of the electronic structure have recently been shown to be consistent with more rigorous path integral Monte Carlo (PIMC) and quantum molecular…

We discuss three new equations of state (EOS) in core-collapse supernova simulations. The new EOS are based on the nuclear statistical equilibrium model of Hempel and Schaffner-Bielich (HS), which includes excluded volume effects and…

高能天体物理现象 · 物理学 2012-11-26 Matthias Hempel , Tobias Fischer , Jürgen Schaffner-Bielich , Matthias Liebendörfer

Wide range equation of state (EOS) for liquid hydrogen is ultimately built by combining two kinds of density functional theory (DFT) molecular dynamics simulations, namely, first-principles molecular dynamics simulations and orbital-free…

材料科学 · 物理学 2015-06-16 Cong Wang , Ping Zhang

We have constructed a nuclear equation of state (EOS) that includes a full nuclear ensemble for use in core-collapse supernova simulations. It is based on the EOS for uniform nuclear matter that two of the authors derived recently, applying…

高能天体物理现象 · 物理学 2017-08-01 S. Furusawa , H. Togashi , H. Nagakura , K. Sumiyoshi , S. Yamada , H. Suzuki , M. Takano
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