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

Journal Article · Fri Sep 15 00:00:00 EDT 2006 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.2338280· OSTI ID:20860245

Shaing, K C ^[1]

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1. Engineering Physics Department, University of Wisconsin, Madison, Wisconsin 53706 (United States)

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.

• OSTI ID: 20860245
• Journal Information: Physics of Plasmas, Vol. 13, Issue 9; Other Information: DOI: 10.1063/1.2338280; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

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