Influence of two counter-rotating magnetic fields on hydrodynamic and heat properties in a cylindrical vessel

M. Abricka - Yu. M. Gelfgat - Yu. Krumins

Institute of Physics, Latvian Academy of Sciences, Salaspils-1, LV-2169, Latvia

Abstract
The isothermal and non-isothermal problem of the motion of an electrically conducting fluid exposed to the effect of the two superimposed counter-rotating magnetic fields in a cylindrical vessel has been solved. The original method was used to calculate the distribution of electromagnetic forces, the method permitting to consider the finite dimensions of the inductor and vessel with the fluid as well as the field generated by the frontal parts of the winding. It was shown how the velocity and temperature distribution varied if the electromagnetic forces induced by the both inductors and the buyoancy force providing thermogravity convection varied. It has been found out that in such a way it is possible to control hydrodynamic and heat/mass transfer phenomena, and the character of velocity patterns in a rotating magnetic field greatly depends on thermogravity flows. Figs 5, refs 4.