Extending magnetohydrodynamics to the slow dynamics of collisionless plasmas
A fluid approach aimed to provide a consistent description of the slow dynamics of a collisionless plasma, is presented. In this regime, both Landau damping and finite Larmor radius effects cannot be ignored. Two models are discussed; one retains the dynamics at sub-ionic scales, while the other is...
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| Veröffentlicht in: | Physics of plasmas 2012-08, Vol.19 (8) |
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| container_title | Physics of plasmas |
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| creator | Passot, T. Sulem, P. L. Hunana, P. |
| description | A fluid approach aimed to provide a consistent description of the slow dynamics of a collisionless plasma, is presented. In this regime, both Landau damping and finite Larmor radius effects cannot be ignored. Two models are discussed; one retains the dynamics at sub-ionic scales, while the other is restricted to scales larger than the ion gyroscale. Special attention is paid to the capability of these approaches to accurately reproduce the properties of linear waves that are known to play an important role, for example, in the small-scale dynamics of solar wind turbulence. |
| doi_str_mv | 10.1063/1.4746092 |
| format | Article |
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| fulltext | fulltext |
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| ispartof | Physics of plasmas, 2012-08, Vol.19 (8) |
| issn | 1070-664X 1089-7674 |
| language | eng |
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| source | AIP Journals Complete; AIP Digital Archive; Alma/SFX Local Collection |
| subjects | 70 PLASMA PHYSICS AND FUSION TECHNOLOGY Astrophysics COLLISIONLESS PLASMA Collisionless plasmas Computational fluid dynamics Dynamics FLOW MODELS Fluid flow IONS LANDAU DAMPING LARMOR RADIUS MAGNETOHYDRODYNAMICS Physics Plasmas SOLAR WIND TURBULENCE Turbulent flow |
| title | Extending magnetohydrodynamics to the slow dynamics of collisionless plasmas |
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