Numerical simulations of electrostatic hydrogen cyclotron instabilities

Journal Article · Mon Jun 01 04:00:00 EDT 1981 · Phys. Fluids; (United States)

DOI:https://doi.org/10.1063/1.863484· OSTI ID:6497389

Okuda, H; Cheng, C Z; Lee, W W

Both one- and two-dimensional particle simulation models have been used to study the nonlinear behavior of the electrostatic hydrogen cyclotron instabilities driven by the electron current along the magnetic field. It is found that the instability saturates as a result of electron velocity space diffusion along the magnetic field. The cyclotron waves remain highly coherent in the nonlinear stage. When the electron drift speed is comparable to the thermal speed, substantial ion heating as well as particle cross-field diffusion comparable to Bohm diffusion has been observed. Comparisons of the simulation results with the theoretical predictions and the observations in both laboratory and space plasmas are discussed.

• Research Organization: Plasma Physics Laboratory, Princeton University, Princeton, New Jersey 08544
• DOE Contract Number: AC02-76CH03073
• OSTI ID: 6497389
• Journal Information: Phys. Fluids; (United States), Journal Name: Phys. Fluids; (United States) Vol. 24:6; ISSN PFLDA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700107* -- Fusion Energy-- Plasma Research-- Instabilities
700108 -- Fusion Energy-- Plasma Research-- Wave Phenomena
COLLISIONLESS PLASMA
CYCLOTRON INSTABILITY
DISPERSION RELATIONS
ELECTRON DRIFT
ELECTROSTATICS
ELEMENTS
HYDROGEN
INSTABILITY
MAGNETIC FIELDS
NONLINEAR PROBLEMS
NONMETALS
ONE-DIMENSIONAL CALCULATIONS
PLASMA
PLASMA INSTABILITY
PLASMA MICROINSTABILITIES
PLASMA SIMULATION
SIMULATION
TWO-DIMENSIONAL CALCULATIONS