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Thermophysics and Aeromechanics

2013 year, number 6

Efficiency of energy separation at compressible gas flow in a planar duct

M.S. Makarov1,2 and S.N. Makarova1
1 Kutateladze Institute of Thermophysics SB RAS, Novosibirsk, Russia
2 Novosibirsk State Technical University, Novosibirsk, Russia
Keywords: gas-dynamic energy separation, helium-xenon mixtures, narrow duct
Pages: 759–767


The method of energy separation in a high-speed flow proposed by A.I. Leontyev is investigated numerically. The adiabatic compressible gas flow (of a helium-xenon mixture) with a low Prandtl number in a planar narrow duct and a flow with heat exchange in a duct partitioned by a heat-conducting wall are analysed. The temperature recovery factor on the adiabatic wall, degree of cooling the low-speed flow part, temperature efficiency, and the adiabatic efficiency in a duct with heat exchange are estimated. The data are obtained for the first time, which make it possible to compare the efficiency of energy separation in a high-speed flow with the efficiency of similar processes in vortex tubes and other setups of gas-dynamic energy separation.