MAGNETOHYDRODYNAMICS AND HEAT TRANSFER IN ROTATING FLOWS

The motion of a viscous conducting medium caused by the rotation of an extended dielectric disk in an axial magnetic fi eld in the presence of an axial temperature gradient is considered. For the case of a strong magnetic fi eld, the values of the Nusselt number on the disk surface are estimated. A comparison of the obtained results with the well-known data of numerical calculation is made. Based on the calculated profi le of the azimuthal velocity of the medium in the boundary layer on the disk, the motion of liquid is investigated in the space between two dielectric disks rotating in the same direction with different angular velocities in the presence of suction and blowing through their solid porous surfaces. The results of calculation of the angular rotational velocities of an inviscid core depending on the suction and magnetic fi eld parameters are given.
   
Author:  V. D. Borisevich and E. P. Potanin
Keywords:  rotating disk, heat transfer, magnetic fi eld, suction, boundary layer, conducting gas
Page:  169