Influence of Axial Magnetic Field on Swirling Flow and Vortex Breakdown Zones in a Cylindrical Cavity with a Rotating Lid

摘要

In this study, behavior of swirling flow under the influence of axial magnetic field in a cylindrical container with a top rotating disk has been probed. The flow is assumed to be axisymmetric for the parameters considered. The domain consists of a cylindrical cavity packed with viscous and electrically conducting metallic liquid. The qualitative effect of magnetic field is manifested in terms of torque coefficient evaluated on the rotating lid as well as the fixed end wall. Effects of the magnetic field on the zones of vortex breakdown, in the Aspect ratio (AR), Reynolds number (Re) plane, for the top rotating lid with all sides electrically insulated have been developed. Moreover, it is found that one can control the behavior of flow with help of a proper choice of the electric conducting wall.