Magnetohydrodynamic flow in a truncated conical enclosure
1Laboratoire des Transports Polyphasiques et Milieux Poreux,Faculté de Génie Mécanique et de Génie des Procédés , University of USTHB, Alger 16000, ALGERIA
2Department of Mechanical, University of UMOB-Bouira, Bouira, 10000, ALGERIA
J Ther Eng 2019; 5(2): 77-83 DOI: 10.18186/thermal.532133
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Abstract

The effect of an axial magnetic field on the flow produced by counter rotation of the top and bottom disks in a truncated conical enclosure filled with a liquid metal is studied The governing Navier Stokes, and potential equations are solved by using the finite volume method . It was observed that the Reynolds num ber is increased, the axisymmetric basic state loses stability and giving an asymmetric mode m=1. It is also found that the primary thresholds Re cr corresponding to the modes m=1 increase with increasing of the Hartmann number (Ha). Finally, stability diag ram (Re Ha) has been established according to the numerical results of this investigation.