Shear flow instability of rotating hydromagnetic fluids

Details Shear flow instability of rotating hydromagnetic fluids Shear flow instability of rotating hydromagnetic fluids

Aug 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985gapfd..33..173n&link_type=abstract

Geophysical and Astrophysical Fluid Dynamics (ISSN 0309-1929), vol. 33, Aug. 1985, p. 173-184.

Statistics

Computation

Magnetic Field Configurations, Magnetohydrodynamic Stability, Rotating Plasmas, Shear Flow, Computational Fluid Dynamics, Coriolis Effect, Lorentz Force, Perturbation Theory, Rossby Regimes, Rotating Fluids

Scientific paper

The effect of an axial magnetic field on the linear stability of shear flows in rotating systems is examined by extending Busse's analysis of the nonmagnetic case to fluids of high magnetic diffusivity in the presence of a magnetic field. The shear is caused by differential rotation which creates slight deviations from a state of rigid rotation, corresponding to a small Rossby number. It is found that the Rossby number for the onset of instability is larger when a magnetic field is present than when it is absent.

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