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Thermophysics and Aeromechanics

2002 year, number 3

Influence of consecutive cavities on heat transfer in supersonic flow

V.N. Zaikovsky, Ya.I. Smulsky, V.M. Trofimov
Institute of Theoretical and Applied Mechanics SB RAS, Novosibirsk, Russia
Pages: 403-409


The heat transfer on the inner surface of a supersonic channel with a set of consecutive cavities was studied. Experiments demonstrated a strong influence of these cavities on the distribution of heat transfer, on appearance of zones with peak heat loads and on a higher level of heat transfer in lengthy zones between the cavities and downstream of them. In the framework of integral method of heat transfer calculation, we used the model function of the pressure gradient impact on the turbulent transfer. Calculations demonstrated a reproducible rate of relaxation processes behind the shocks and rarefaction waves. A rather strong effect of turbulent transfer was reconfirmed for the flow zones subjected to the rarefaction waves.