Self-similar magnetic field penetration of a homogeneous collisionless plasma due to electron velocity advection

Journal Article · Sat Feb 01 04:00:00 EST 1992 · Physics of Fluids B; (United States)

DOI:https://doi.org/10.1063/1.860277· OSTI ID:7205643

Oliver, B V; Rudakov, L I; Mason, R J; Auer, P L ^[1]

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1. Laboratory of Plasma Studies, Cornell University, Ithaca, New York 14853 (United States)

The velocity advection, {ital m}{sub {ital e}}(v{sub e}{center dot}{del}){bold v}{sub {bold e}}, terms in the momentum equation for electrons in a collisionless plasma are shown to introduce an effective resistivity on the currents drawn from a bounding cathode. This leads to nonlinear diffusive penetration of an externally driven magnetic field, which at time {ital t} and height {ital y} above the cathode, penetrates to a depth {delta} obeying the scaling {delta}{similar to}({ital t}/{ital y}){sup 1/3}.

• OSTI ID: 7205643
• Journal Information: Physics of Fluids B; (United States), Journal Name: Physics of Fluids B; (United States) Vol. 4:2; ISSN 0899-8221; ISSN PFBPE
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700340* -- Plasma Waves
Oscillations
& Instabilities-- (1992-)
ADVECTION
ANODES
CATHODES
COLLISIONLESS PLASMA
DIFFUSION
ELECTRICAL EQUIPMENT
ELECTRODES
ELECTRON DENSITY
EQUIPMENT
FARADAY LAWS
HALL EFFECT
MAGNETIC FIELDS
MASS TRANSFER
PLASMA
PLASMA SIMULATION
PLASMA SWITCHES
SCALING LAWS
SIMULATION
SWITCHES
WALL EFFECTS