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Thermophysics and Aeromechanics

2002 year, number 1

Application of liquid crystals for study of heat transfer and flow structure in a channel with corrugated walls

G.M. Zharkova, V.N. Kovrizhina, V.A. Mukhin, S.P. Podyachev, and V.M. Khachaturyan
Institute of Theoretical and Applied Mechanics SB RAS, Novosibirsk, Russia
Pages: 99-106


The effect of a texture transition and selective reflection in cholesteric liquid crystals was applied for a study of structure of near-wall flow in a channel. For the range of ReDh from 1.8. 103 to 18. 103, the method of liquid-crystal thermography was applied for research of heat transfer and flow structure on a model of heat exchanger at different angles between the main stream and the rib direction. The empirical relationships for integral number Nu with number Re and heat exchanger geometry are presented.