Application of the generalized Bohm criterion to Emmert's solution of the warm ion collisionless plasma equation

Journal Article · Wed Jul 01 04:00:00 EDT 1987 · Phys. Fluids; (United States)

DOI:https://doi.org/10.1063/1.866160· OSTI ID:6489363

Bissell, R C

Emmert et al. (Phys. Fluids 23, 803 (1980)) have modeled the flow of a one-dimensional collisionless plasma to a material wall by formulating and solving the warm-ion plasma equation. In contrast to the result of the cold-ion plasma equation it was found that the electric field at the plasma--sheath boundary was finite. It is first shown that Emmert's solution satisfies the generalized Bohm criterion, and is thus a valid solution, before discussing the cause of the difference in the results of the two models in calculating the boundary electric field.

• Research Organization: Culham Laboratory (UKAEA/Euratom Fusion Association) Abingdon, Oxon, OX14 3DB, United Kingdom
• OSTI ID: 6489363
• Journal Information: Phys. Fluids; (United States), Journal Name: Phys. Fluids; (United States) Vol. 30:7; ISSN PFLDA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700103* -- Fusion Energy-- Plasma Research-- Kinetics
BOHM CRITERION
BOUNDARY LAYERS
CHARGED PARTICLES
COLD PLASMA
COLLISIONLESS PLASMA
ELECTRIC FIELDS
IONS
LAYERS
ONE-DIMENSIONAL CALCULATIONS
PLASMA
PLASMA DRIFT
PLASMA SHEATH
PLASMA SIMULATION
SIMULATION
USES
WALLS