Landau fluid models of collisionless magnetohydrodynamics
- Princeton Plasma Physics Laboratory, P.O. Box 451, Princeton, New Jersey 08543 (United States)
- Institute for Fusion Studies, University of Texas at Austin, Austin, Texas 78712-1060 (United States)
A closed set of fluid moment equations including models of kinetic Landau damping is developed which describes the evolution of collisionless plasmas in the magnetohydrodynamic parameter regime. The model is fully electromagnetic and describes the dynamics of both compressional and shear Alfv{acute e}n waves, as well as ion acoustic waves. The model allows for separate parallel and perpendicular pressures p{sub {parallel}} and p{sub {perpendicular}}, and, unlike previous models such as the Chew{endash}Goldberger{endash}Low theory, correctly predicts the instability threshold for the mirror instability. Both a simple 3+1 moment model and a more accurate 4+2 moment model are developed, and both could be useful for numerical simulations of astrophysical and fusion plasmas. {copyright} {ital 1997 American Institute of Physics.}
- OSTI ID:
- 544852
- Journal Information:
- Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 11 Vol. 4; ISSN PHPAEN; ISSN 1070-664X
- Country of Publication:
- United States
- Language:
- English
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