skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Extending the collisional fluid equations into the long mean-free-path regime in toroidal plasmas. III. Parallel heat conduction

Abstract

It is illustrated that plasma transport processes in the direction of the magnetic field are local in the vicinity of the magnetic island in the long mean-free-path regime where the collisionality parameter {nu}{sub *} is larger than 10{sup -2}, and the width of the island is about 3% of the minor radius or smaller. This is because the plasma temperature variation on the magnetic surface that results from the magnetic reconnection is gentle. Both the electron and the ion parallel transport fluxes including parallel heat flow in the banana regime where {nu}{sub *}<1 are calculated using a model Coulomb collision operator that conserves momentum.

Authors:
 [1]
  1. Engineering Physics Department, University of Wisconsin, Madison, Wisconsin 53706 (United States)
Publication Date:
OSTI Identifier:
20860245
Resource Type:
Journal Article
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 13; Journal Issue: 9; Other Information: DOI: 10.1063/1.2338280; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1070-664X
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; BANANA REGIME; COLLISIONS; ELECTRON TEMPERATURE; ELECTRONS; HEAT FLUX; ION TEMPERATURE; IONS; MAGNETIC FIELDS; MAGNETIC ISLANDS; MAGNETIC RECONNECTION; MAGNETIC SURFACES; MAGNETOHYDRODYNAMICS; MEAN FREE PATH; PLASMA; PLASMA CONFINEMENT; PLASMA FLUID EQUATIONS; RADIATION TRANSPORT; THERMAL CONDUCTION; TOKAMAK DEVICES

Citation Formats

Shaing, K C. Extending the collisional fluid equations into the long mean-free-path regime in toroidal plasmas. III. Parallel heat conduction. United States: N. p., 2006. Web. doi:10.1063/1.2338280.
Shaing, K C. Extending the collisional fluid equations into the long mean-free-path regime in toroidal plasmas. III. Parallel heat conduction. United States. https://doi.org/10.1063/1.2338280
Shaing, K C. 2006. "Extending the collisional fluid equations into the long mean-free-path regime in toroidal plasmas. III. Parallel heat conduction". United States. https://doi.org/10.1063/1.2338280.
@article{osti_20860245,
title = {Extending the collisional fluid equations into the long mean-free-path regime in toroidal plasmas. III. Parallel heat conduction},
author = {Shaing, K C},
abstractNote = {It is illustrated that plasma transport processes in the direction of the magnetic field are local in the vicinity of the magnetic island in the long mean-free-path regime where the collisionality parameter {nu}{sub *} is larger than 10{sup -2}, and the width of the island is about 3% of the minor radius or smaller. This is because the plasma temperature variation on the magnetic surface that results from the magnetic reconnection is gentle. Both the electron and the ion parallel transport fluxes including parallel heat flow in the banana regime where {nu}{sub *}<1 are calculated using a model Coulomb collision operator that conserves momentum.},
doi = {10.1063/1.2338280},
url = {https://www.osti.gov/biblio/20860245}, journal = {Physics of Plasmas},
issn = {1070-664X},
number = 9,
volume = 13,
place = {United States},
year = {Fri Sep 15 00:00:00 EDT 2006},
month = {Fri Sep 15 00:00:00 EDT 2006}
}