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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.2013006954
pages 83-95

INFLUENCE OF THREE-DIMENSIONAL PERTURBATIONS ON HEAT TRANSFER IN HYPERSONIC FLOW

Ivan Vladimirovich Egorov
Central Aerohydrodynamic Institute (TsAGI), 1, Zhukovsky Str., Zhukovsky, Moscow Region, 140180, Russian Federation
Natalia Palchekovskaya
Moscow Institute of Physics and Technology, Institutsky pereulok 9, Dolgoprudny, Moscow Region, 141700, Russia
Vladimir Viktorovich Shvedchenko
Central Aerohydrodynamic Institute (TsAGI) , Zhukovsky, Moscow region, Russia

ABSTRACT

The present paper deals with the three-dimensional flow in a shock layer at supersonic transverse flow conditions over the front surface of a cylinder and a sphere under small, spatially periodic perturbations along the transverse coordinate. Based on the numerical solution of the unsteady three-dimensional Navier−Stokes equations, it is shown that small imposed perturbations of the free-stream velocity (0.5−3 %) along the transverse coordinate lead to the shock curvature and cause the formation of vortex structures in the shock layer and significant perturbations of the heat flux on the surface.


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