Abstract
The flow of a magnetic fluid placed inside a small gap between concentric rotating cylinders is investigated for axial, radial and azimuthal magnetic fields. An equation of motion is derived phenomenologically to describe the hydrodynamics of magnetic fluids. Studied are the changes in the critical Taylor numberT c and wave numberT c which characterize the instability of primary circular Couette flow towards Taylor vortices. It is found that all above magnetic fields have a stabilizing effect on circular Couette flow and thatT c increases or decreases, depending on the direction of the magnetic field. Besides this, the influence of the magnetic fields on the correlation length ξ0, the wave number of maximal growthk m and the linear growth rate amplitude σ0 is determined.
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Niklas, M. Influence of magnetic fields on taylor vortex formation in magnetic fluids. Z. Physik B - Condensed Matter 68, 493–501 (1987). https://doi.org/10.1007/BF01471080
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DOI: https://doi.org/10.1007/BF01471080