Excess pressure and electric fields in nonideal plasma hydrodynamics
Abstract
Nonideal plasmas have nontrivial space and time correlations, which simultaneously impact both the excess thermodynamic quantities as well as the collision processes. Yet, hydrodynamics models for designing and interpreting nonideal plasma experiments, such as inertial-confinement fusion experiments, typically neglect electrodynamics, although some models include electric fields indirectly through a generalized Fick's law. However, because most transport models are not computed self-consistently with the equation of state, there is double counting of the forces in the excess thermodynamic quantities and the collision terms. Here we employ the statistical mechanical hydrodynamic theory of Irving and Kirkwood [J. Chem. Phys. 18, 817 (1950)] to examine inhomogeneous, nonideal plasmas that contain electric fields. We show that it is not possible to simultaneously separate terms that correspond to electric fields and excess pressure; rather, these quantities arise from the same interparticle Coulomb forces. Additionally, new terms associated with nonlocality appear in the presence of strong inhomogeneities.
- Authors:
-
[1];
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- 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 National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1544725
- Report Number(s):
- LA-UR-18-29204
Journal ID: ISSN 2470-0045; PLEEE8
- Grant/Contract Number:
- 89233218CNA000001
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review E
- Additional Journal Information:
- Journal Volume: 99; Journal Issue: 6; Journal ID: ISSN 2470-0045
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; 74 ATOMIC AND MOLECULAR PHYSICS; Equation of state; heterogeneous plasmas; electric fields; Euler
Citation Formats
Diaw, A., and Murillo, Michael S. Excess pressure and electric fields in nonideal plasma hydrodynamics. United States: N. p., 2019.
Web. doi:10.1103/PhysRevE.99.063207.
Diaw, A., & Murillo, Michael S. Excess pressure and electric fields in nonideal plasma hydrodynamics. United States. https://doi.org/10.1103/PhysRevE.99.063207
Diaw, A., and Murillo, Michael S. Mon .
"Excess pressure and electric fields in nonideal plasma hydrodynamics". United States. https://doi.org/10.1103/PhysRevE.99.063207. https://www.osti.gov/servlets/purl/1544725.
@article{osti_1544725,
title = {Excess pressure and electric fields in nonideal plasma hydrodynamics},
author = {Diaw, A. and Murillo, Michael S.},
abstractNote = {Nonideal plasmas have nontrivial space and time correlations, which simultaneously impact both the excess thermodynamic quantities as well as the collision processes. Yet, hydrodynamics models for designing and interpreting nonideal plasma experiments, such as inertial-confinement fusion experiments, typically neglect electrodynamics, although some models include electric fields indirectly through a generalized Fick's law. However, because most transport models are not computed self-consistently with the equation of state, there is double counting of the forces in the excess thermodynamic quantities and the collision terms. Here we employ the statistical mechanical hydrodynamic theory of Irving and Kirkwood [J. Chem. Phys. 18, 817 (1950)] to examine inhomogeneous, nonideal plasmas that contain electric fields. We show that it is not possible to simultaneously separate terms that correspond to electric fields and excess pressure; rather, these quantities arise from the same interparticle Coulomb forces. Additionally, new terms associated with nonlocality appear in the presence of strong inhomogeneities.},
doi = {10.1103/PhysRevE.99.063207},
journal = {Physical Review E},
number = 6,
volume = 99,
place = {United States},
year = {Mon Jun 24 00:00:00 EDT 2019},
month = {Mon Jun 24 00:00:00 EDT 2019}
}
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