Modified formula of nonlocal electron transport in a laser-produced plasma

Journal Article · Fri Jul 01 04:00:00 EDT 1994 · Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics; (United States)

DOI:https://doi.org/10.1103/PhysRevE.50.443· OSTI ID:7282798

Xu, Y ^[1]; He, X T ^[2]

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1. Institute of Applied Physics and Computational Mathematics, P.O. Box 8009, Beijing 100088 (China)
2. Institute of Applied Physics and Computational Mathematics, P.O. Box 8009, Beijing (China) China Center of Advanced Science Technology (World Laboratory), P.O. Box 8730, Beijing 100080 (China)

A nonlocal heat-transport formula for electrons is derived to include the terms associated with the electrostatic potential and [partial derivative]/[partial derivative][ital v]([ital f][sub 0],[ital f][sub 1]) in the Fokker-Planck (FP) equation. Then the FP equation for a strongly inhomogeneous plasma is solved. It is found that the behavior of the electron thermal conductivity at a large temperature gradient is considerably affected by the electrostatic field, and the thermal conductivity [kappa]/[kappa][sub SH] for electrons scales as 1/[ital k] in a large temperature gradient [ital k] when there exists a non-negligible electrostatic field, where [kappa][sub SH] is the Spitzer-Haerm heat coefficient.

• OSTI ID: 7282798
• Journal Information: Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics; (United States), Journal Name: Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics; (United States) Vol. 50:1; ISSN 1063-651X; ISSN PLEEE8
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700330* -- Plasma Kinetics
Transport
& Impurities-- (1992-)
DIFFERENTIAL EQUATIONS
ELECTRONS
ELEMENTARY PARTICLES
ENERGY TRANSFER
EQUATIONS
FERMIONS
FOKKER-PLANCK EQUATION
HEAT TRANSFER
IMPACT FUSION
INHOMOGENEOUS PLASMA
KINETIC EQUATIONS
LASER-PRODUCED PLASMA
LEPTONS
NUCLEAR REACTIONS
NUCLEOSYNTHESIS
PARTIAL DIFFERENTIAL EQUATIONS
PHYSICAL PROPERTIES
PLASMA
SYNTHESIS
TEMPERATURE GRADIENTS
THERMAL CONDUCTIVITY
THERMODYNAMIC PROPERTIES
THERMONUCLEAR REACTIONS
TRANSPORT THEORY