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Author Chodura, R.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword PLASMA PHYSICS AND FUSION TECHNOLOGY ♦ PLASMA SHEATH ♦ ELECTROHYDRODYNAMICS ♦ MAGNETOHYDRODYNAMICS ♦ BOUNDARY CONDITIONS ♦ ENERGY ABSORPTION ♦ NUMERICAL ANALYSIS ♦ PLASMA SIMULATION ♦ WALLS ♦ ABSORPTION ♦ FLUID MECHANICS ♦ HYDRODYNAMICS ♦ MATHEMATICS ♦ MECHANICS ♦ SIMULATION ♦ Fusion Energy- Plasma Research- Plasma Kinetics-Theoretical- (-1987)
Abstract The effect of a magnetic field on the transition layer between a plasma and an absorbing wall is studied. A numerical model is used which simulates the motion of plasma particles in the electric and magnetic fields for a prescribed particle influx at the plasma boundary. Bohm's condition for the existence of a monotonic profile of the layer is generalized. The transition layer proves to have a double structure comprising a quasineutral magnetic presheath preceding the electrostatic Debye sheath. The magnetic presheath scales with the ion gyroradius at the sound speed and with the angle of the magnetic field. The total electric potential drop between plasma and wall proves to be fairly insensitive to the magnitude and angle of the magnetic field.
Educational Use Research
Learning Resource Type Article
Publisher Date 1982-09-01
Publisher Department Max-Planck-Institut fuer Plasmaphysik, EURATOM-Association, D-8046 Garching, Federal Republic of Germany
Publisher Place United States
Journal Phys. Fluids
Volume Number 25
Issue Number 9
Organization Max-Planck-Institut fuer Plasmaphysik, EURATOM-Association, D-8046 Garching, Federal Republic of Germany


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