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TsAGI Science Journal

ISSN Print: 1948-2590
ISSN Online: 1948-2604

TsAGI Science Journal

DOI: 10.1615/TsAGISciJ.v41.i6.20
pages 619-630

INVESTIGATION OF THE TEMPERATURE FACTOR INFLUENCE ON HEAT TRANSFER OF A BLUNT BODY MODEL IN THE HIGH-SPEED GAS FLOW

Ivan Vladimirovich Egorov
Central Aerohydrodynamic Institute (TsAGI), 1, Zhukovsky Str., Zhukovsky, Moscow Region, 140180, Russian Federation
Oleg Konstantinovich Kudin
Central Aerohydrodynamic Institute (TsAGI), 1 Zhukovsky Str., Zhukovsky, Moscow Region, 140180, Russia
Yurii Nikolaevich Nesterov
Central Aerohydrodynamic Institute (TsAGI), 1 Zhukovsky Str., Zhukovsky, Moscow Region, 140180, Russia
Boris Viktorovich Prusov
Central Aerohydrodynamic Institute (TsAGI), Russia

ABSTRACT

The results of experimental and numerical investigation of the temperature factor influence on the heat transfer in the base area of a blunt body, representing a schematic space vehicle model, are presented. The model simulates a thermal shield in the form of a spherically blunt cone and a cylindrical payload reservoir, located in its base area, with a diameter approximately two times smaller than the cone base diameter. The investigations were carried out at the free-stream Mach number 11.46, Reynolds numbers 1.7−3 × 105 within the range of the temperature factor variation ∼0.13−0.36. The heat flux distributions over the front and back surfaces of the model were obtained. Fulfilled on the basis of the numerical calculations was the analysis of changes in the characteristic parameters of the separation area behind the model while changing temperature factor.