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Heat transfer enhancement in a plane channel by means of a magnetic fluid layer

V. Bashtovoi - A. S. Zeikovskaya - M. S. Krakov

Belorusian State Academy, Laborathory of Thermomechanics of Magnetic Fluids, Minsk, 220027, Bielorussia

Heat transfer is investigated in a plane channel with a magnetic fluid layer on the bottom wall when the heat flux on that wall is constant. It is shown that using such layer it is possible to enhance the heat transfer by a factor of 2,5. The role of the backward flow in the layer is studied and the heat transfer by this flow to the channel inlet is found to lead to a worsening of the wall cooling in the channel inlet portion. A method of heat transfer enhancement by placing a fin in the layer near the channel entry is proposed. Figs 8, Refs 7.

Magnitnaya Gidrodinamika 31, No. 2, 125-134, 1995 [PDF, 0.54 Mb] (in Russian)
Magnetohydrodynamics 31, No. 2, 112-119, 1995 [PDF, 0.42 Mb]

Copyright: Institute of Physics, University of Latvia
Electronic edition ISSN 1574-0579
Printed edition ISSN 0024-998X