Magnetorotational instability in viscous dusty plasmas with three-component model
作者： Ai-Hua Zhou
DOI: 10.1007/S10509-012-1202-7
关键词: Classical mechanics 、 Dispersion relation 、 Plasma 、 Viscosity 、 Physics 、 Magnetic field 、 Rotational symmetry 、 Magnetorotational instability 、 Mechanics 、 Electron 、 Angular velocity
摘要: The magnetorotational instability (MRI) in axisymmetric rotating dusty plasmas with viscous effects is investigated by means of a three-component model MRI vertical weak magnetic field. Starting from the three-fluid equations and Maxwell’s equations, I derive general linear dispersion relation governing local MRI. dust rotational flow assumed to have same angular velocity as ions electrons. two special cases, without viscosity respectively, discussed detail taking into account high-frequency approximation order make perturbation frequency larger than ion cyclotron frequency. numerical results demonstrate that both can prevent growth, dust-induced are shown be especially significant.
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