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arXiv · 0706.2690

Hydromagnetic Instability in plane Couette Flow

Alfio Bonanno·Vadim Urpin
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Abstract

We study the stability of a compressible magnetic plane Couette flow and show that compressibility profoundly alters the stability properties if the magnetic field has a component perpendicular to the direction of flow. The necessary condition of a newly found instability can be satisfied in a wide variety of flows in laboratory and astrophysical conditions. The instability can operate even in a very strong magnetic field which entirely suppresses other MHD instabilities. The growth time of this instability can be rather short and reach $\sim 10$ shear timescales.

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Alfio Bonanno, Vadim Urpin. 2007-06-19. Hydromagnetic Instability in plane Couette Flow. https://doi.org/10.1103/physreve.76.016303

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