Magnetohydrodynamic Effect on Flow Structures Between Coaxial Cylinders Heated from Below

What is it about?

In this paper, we use the numerical simulation to investigate the characteristics of heat transfer during the flow of counter-rotating disks of a liquid metal placed in the gap between two coaxial vertical cylinders in the presence of an axial magnetic field. The increase of rotation rate accelerates the fluid and breaking the azimuthal symmetry of the flow, so a fully three-dimensional (3D) simulation is necessary. The aim of the present study is to clarify the effects of both the rotation rate and annular gaps on the critical Reynolds number, Recr corresponding to the transition from axisymmetric to non-axisymmetric flow. The second objective is to identify the most efficient magnitude of the magnetic field on flow stability and controls heat transfer.

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