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Title: Thermodynamic and Kinetic Properties of Shocks in Two-Dimensional Yukawa Systems [Thermodynamic and Kinetic Properties of Shocks in 2D Yukawa Systems]

Abstract

Particle-level simulations of shocked plasmas are carried out to examine kinetic properties not captured by hydrodynamic models. In particular, molecular dynamics simulations of 2D Yukawa plasmas with variable couplings and screening lengths are used to examine shock features unique to plasmas, including the presence of dispersive shock structures for weak shocks. A phase-space analysis reveals several kinetic properties, including anisotropic velocity distributions, non-Maxwellian tails, and the presence of fast particles ahead of the shock, even for moderately low Mach numbers. As a result, we also examine the thermodynamics (Rankine-Hugoniot relations) of recent experiments and find no anomalies in their equations of state.

Authors:
 [1];  [2]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Michigan State Univ., East Lansing, MI (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1441295
Alternate Identifier(s):
OSTI ID: 1338865
Report Number(s):
LA-UR-16-28297
Journal ID: ISSN 0031-9007; PRLTAO; TRN: US1900882
Grant/Contract Number:  
AC52-06NA25396
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 118; Journal Issue: 2; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; Plasma; Shocks; Yukawa

Citation Formats

Marciante, Mathieu, and Murillo, Michael Sean. Thermodynamic and Kinetic Properties of Shocks in Two-Dimensional Yukawa Systems [Thermodynamic and Kinetic Properties of Shocks in 2D Yukawa Systems]. United States: N. p., 2017. Web. doi:10.1103/PhysRevLett.118.025001.
Marciante, Mathieu, & Murillo, Michael Sean. Thermodynamic and Kinetic Properties of Shocks in Two-Dimensional Yukawa Systems [Thermodynamic and Kinetic Properties of Shocks in 2D Yukawa Systems]. United States. doi:10.1103/PhysRevLett.118.025001.
Marciante, Mathieu, and Murillo, Michael Sean. Tue . "Thermodynamic and Kinetic Properties of Shocks in Two-Dimensional Yukawa Systems [Thermodynamic and Kinetic Properties of Shocks in 2D Yukawa Systems]". United States. doi:10.1103/PhysRevLett.118.025001. https://www.osti.gov/servlets/purl/1441295.
@article{osti_1441295,
title = {Thermodynamic and Kinetic Properties of Shocks in Two-Dimensional Yukawa Systems [Thermodynamic and Kinetic Properties of Shocks in 2D Yukawa Systems]},
author = {Marciante, Mathieu and Murillo, Michael Sean},
abstractNote = {Particle-level simulations of shocked plasmas are carried out to examine kinetic properties not captured by hydrodynamic models. In particular, molecular dynamics simulations of 2D Yukawa plasmas with variable couplings and screening lengths are used to examine shock features unique to plasmas, including the presence of dispersive shock structures for weak shocks. A phase-space analysis reveals several kinetic properties, including anisotropic velocity distributions, non-Maxwellian tails, and the presence of fast particles ahead of the shock, even for moderately low Mach numbers. As a result, we also examine the thermodynamics (Rankine-Hugoniot relations) of recent experiments and find no anomalies in their equations of state.},
doi = {10.1103/PhysRevLett.118.025001},
journal = {Physical Review Letters},
number = 2,
volume = 118,
place = {United States},
year = {2017},
month = {1}
}

Journal Article:
Free Publicly Available Full Text
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Cited by: 2 works
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Figures / Tables:

FIG. 1 FIG. 1: Pressure ratio p1/p0 versus inverse compression V1/V0. (a) Fixed κ0 = 1, with 12 values of $Γ$0, and varying the shock strength (points in groups, as shown by dashed oval). The solid curves are the theoretical predictions for ideal gas behavior in 2D (blue) and 3D (green). Thismore » result shows that dimensionality plays a larger role than very large variations in coupling. (b) Same as (a), except for fixed $Γ$0 = 1517. Hugoniots strongly deviate from the 2D-ideal gas curve as the screening is increased. Error bars, not shown, are smaller than the size of the markers.« less

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      Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.