Abstract

Ferrofluids have a very wide range of possible values of Prandtl number since they are water-based or oil-based. Recent research has highlighted the important role played by the centrifugal buoyancy in highly viscous fluids. The present paper investigates the impact of the centrifugal buoyancy on the thermomagnetic instability in a ferrofluid confined in a cylindrical annulus with a rotating inner cylinder, with a special interest on the effect of viscosity.

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