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国际计算热科学期刊
ESCI SJR: 0.249 SNIP: 0.434 CiteScore™: 0.7

ISSN 打印: 1940-2503
ISSN 在线: 1940-2554

国际计算热科学期刊

DOI: 10.1615/ComputThermalScien.2016018947
pages 543-553

JOINT INFLUENCE OF HIGH ENTROPY LAYER AND GOERTLER VORTICES ON HEAT TRANSFER IN SUPERSONIC COMPRESSION RAMP FLOW

Pavel Vladimirovich Chuvakhov
Central Aerohydromynamic Institute, 1 Zhukovskogo str., Zhukovsky, Moscos reg., 140180, Russia; and Moscow Institute of Physics and Technology (State University), 9 Institutskiy per., Dolgoprudny, Moscow reg., 141700, Russia
Ivan Vladimirovich Egorov
Central Aerohydrodynamic Institute (TsAGI), 1, Zhukovsky Str., Zhukovsky, Moscow Region, 140180, Russian Federation
H. Olivier
RWTH Aachen University, 52056 Aachen, Germany
A. Roghelia
RWTH Aachen University, 52056 Aachen, Germany

ABSTRACT

The joint influence of a small bluntness-generated high entropy layer and Goertler vortices is investigated numerically for a laminar supersonic compression ramp flow at free stream Mach number M = 8 and Reynolds number ReL ~ 3.71 × 105 based on flat plate length. Beside the fact that Goertler vortices result in spanwise variation of the heat flux coefficient with respect to its average level, they are also found to increase the average level. The high entropy layer is shown to dramatically reduce heat flux and its spanwise variations due to vortices in the reattachment region, with Goertler vortices suppressed.


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