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Title: Kinetic model for the collisionless sheath of a collisional plasma

Abstract

Collisional plasmas typically have mean-free-path still much greater than the Debye length, so the sheath is mostly collisionless. Once the plasma density, temperature, and flow are specified at the sheath entrance, the profile variation of electron and ion density, temperature, flow speed, and conductive heat fluxes inside the sheath is set by collisionless dynamics, and can be predicted by an analytical kinetic model distribution. Finally, these predictions are contrasted in this paper with direct kinetic simulations, showing good agreement.

Authors:
 [1];  [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Fusion Energy Sciences (FES) (SC-24); USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR) (SC-21); USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1409762
Alternate Identifier(s):
OSTI ID: 1282419
Report Number(s):
LA-UR-16-21847
Journal ID: ISSN 1070-664X
Grant/Contract Number:  
AC52-06NA25396
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 23; Journal Issue: 8; Journal ID: ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; plasma sheaths; plasma temperature; plasma flows; collision theories; heat conduction

Citation Formats

Tang, Xian-Zhu, and Guo, Zehua. Kinetic model for the collisionless sheath of a collisional plasma. United States: N. p., 2016. Web. doi:10.1063/1.4960321.
Tang, Xian-Zhu, & Guo, Zehua. Kinetic model for the collisionless sheath of a collisional plasma. United States. doi:10.1063/1.4960321.
Tang, Xian-Zhu, and Guo, Zehua. Thu . "Kinetic model for the collisionless sheath of a collisional plasma". United States. doi:10.1063/1.4960321. https://www.osti.gov/servlets/purl/1409762.
@article{osti_1409762,
title = {Kinetic model for the collisionless sheath of a collisional plasma},
author = {Tang, Xian-Zhu and Guo, Zehua},
abstractNote = {Collisional plasmas typically have mean-free-path still much greater than the Debye length, so the sheath is mostly collisionless. Once the plasma density, temperature, and flow are specified at the sheath entrance, the profile variation of electron and ion density, temperature, flow speed, and conductive heat fluxes inside the sheath is set by collisionless dynamics, and can be predicted by an analytical kinetic model distribution. Finally, these predictions are contrasted in this paper with direct kinetic simulations, showing good agreement.},
doi = {10.1063/1.4960321},
journal = {Physics of Plasmas},
number = 8,
volume = 23,
place = {United States},
year = {Thu Aug 04 00:00:00 EDT 2016},
month = {Thu Aug 04 00:00:00 EDT 2016}
}

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