Recent results related to blanket technology

H. Branover - A. Eidelman - M. Nagorny

Center for MHD Studies, Ben-Gurion University of the Negev, P.O.B. 653, Beer-Sheva 84105, Israel

Abstract
The problem of heat transfer intensification in the liquid metal blanket is of rather high priority. The present paper investigates general laws of the transfer of heat as a passive scalar in an MHD channel under a transverse magnetic field. A thin heating grid introduced heat flow into an already turbulized mercury flow. Velocity and temperature spectra were measured with changing parameters of the experiment. We have obtained a strong dependence of velocity spectra on the magnetic field value. As to temperature spectra, their low-frequency range with -5/3 slope is nearly field independent. The shape of a higher-frequency range of temperature spectra experiences a weak influence of magnetic field value, Reynolds number, and grid heating intensity.