Heat transfer in a channel with a sinusoidal magnetic fluid coating

V. G. Bashtovoi - N. K. Tkhang - V. A. Chernobai

Abstract
The effect of a sinusoidal magnetic fluid coating on the heat transfer and the flow struclure in a flat channel has been studied experamentally. The heat transfer intensity has increased twice when the lower wall of the channel is covered with a layer of a poorly viscous magnetic fluid (the medium and the magnetic fluid viscosity ratio was η12=16.8) and a simultaneous decrease of hydraulic drag of the channel was observed. The dependence of heat transfer intensification coefficient on the viscosity ratio η12, and geometrical parameters of the coating (wavelength A and mean depth s) has been investigated. Figs 5, refs 5.

Magnitnaya Gidrodinamika 28, No. 2, 101-105, 1992[PDF, 0.25 Mb] (in Russian)
Magnetohydrodynamics 28, No. 2, 193-196, 1992[PDF, 0.24 Mb]

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Copyright: Institute of Physics, University of Latvia
Electronic edition ISSN 1574-0579
Printed edition ISSN 0024-998X
DOI: http://doi.org/10.22364/mhd