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ISSN Online: 2377-424X

ISBN Print: 978-1-56700-474-8

ISBN Online: 978-1-56700-473-1

International Heat Transfer Conference 16
August, 10-15, 2018, Beijing, China

STUDY OF TEMPERATURE STRATIFICATION REGIMES FOR GRADUATED SUCTION OF A GAS FROM A SUPERSONIC FLOW

Get access (open in a dialog) DOI: 10.1615/IHTC16.hte.024138
pages 5627-5633

Abstract

In the framework of study of gas-dynamic temperature stratification method a numerical investigation of the temperature stratification is carried out for gas suction from a turbulent boundary layer in a supersonic flow on a permeable plate. The effect of Prandtl and Mach numbers of an external flow on the temperature stratification value is investigated. Stratification is most pronounced for gases with small Prandtl numbers and significantly depends on the intensity of gas suction. The effect of graduated or stepped suction of varying intensity on the value of the temperature stratification is studied. It is shown that for a number of combinations of permeable inserts of different lengths with variable suction intensity, a significant difference can be obtained between the average temperature of the gas in the boundary layer and the average temperature of the suctioned gas.