2010 1(3)

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   Short abstract

 

Pages:

184 - 189

Language:

RU

Ref.:

1


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2010_1(3)_29.pdf

 

 

HEAT TRANSFER TO THE SURFACE OF AN "EXPERT" REENTRY VEHICLE MODEL

Zharkova G.M., Kovrizhina V.N., Petrov A.P., Khachaturyan V.M.

Khristianovich Institute Of Theoretical And Applied Mechanics SB RAS, Novosibirsk, Russia


Citation:

Zharkova, G.M., Kovrizhina, V.N., Petrov, A.P. and Khachaturyan, V.M., (2010) Heat transfer to the surface of an "Expert" reentry vehicle model, Modern Science: Researches, Ideas, Results, Technologies, Iss. #1(3), PP. 184 - 189.


Keywords:

heat emission; Mach number; thermal stream; thermography


Abstracts:

The purpose of the present study was to panoramically visualize and measure the temperature field on the surface of an EXPERT reentry vehicle model under conditions of the АТ-303 hypersonic hot-shot wind tunnel of ITAM at Mach number М∞≈ 14. Such panoramic data allow one to reveal the flow pattern around the model and the position of characteristic streamlines in the near wall flow, to calculate the wall heat fluxes, and to carry out a panoramic study of the flow. In particular, in the present work we examined the degree to which the height of a backward facing ring step provided at the junction between the head part of the model and its conical part affected the temperature field, or the flow pattern, and the heat transfer on the wall. The panoramic measurements of the temperature fields were carried out using the Liquid-Crystal Thermography (LCT) method. A specific feature of the present tests consisted in that the duration of the wind-tunnel regime with М∞≈14 was short, about 50-70 ms, this circumstance imposing rather stringent requirements on the measurement procedure. Previously, similar measurements of reference cone models in the same wind tunnel were performed under conditions with test duration 250-350 ms at Mach number M∞≈10.


References:

  1. Kovrizhina V.N., Kharitonov A.M., Petrov A.P., Schpack S.I., Zharkova G.M., Zvegintsev V.I. / The Study Of Hypersonic heat transfer by Liquid crystals Thermography. Proc.of the 6th European Symposium on Aerothermodynamics For Space Vechicles, EUCASS, 3-6 November, 2008, Versailles, France.

 

 
     

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