HEAT EXCHANGE ON THE FRONT SURFACE OF A BLUNT BODY IN A HIGH-SPEED FLOW CONTAINING LOW-INERTIA PARTICLES
E. B. Vasilevskiia, A. N. Osiptsovb A. V. Chirikhina and L. V. Yakovlevaa UDC 556.6.071.6:532.529 The method and results of an experimental investigation of the heat exchange on the front surface of a sphere in a supersonic flow containing particles of diameter d = 0.12-2.4 m and hollow particles of d = 160 m are presented. It has been revealed that in the case where even very small particles of d = 0.15 m are contained in an undisturbed flow and their concentration is low (of the order of a percent), the heat flux in the region of the critical point of the model markedly increases. A comparison of the experimental data with the data of calculations of the heat exchange in the region of the forward critical point which are based on the theory of a two-phase laminar boundary layer has been made. A glow near the surface of the model was observed in the experiments conducted in total darkness. aN. E. Zhukovskii Central Aerohydrodynamics Institute, Zhukovskii, Moscow Region, Russia; email: vas@tsagi.rssi.ru; bScientific-Research Institute of Mechanics at the M. V. Lomonosov Moscow State University, Moscow, Russia; email: osiptsov@inmech.msu.su. Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 74, No. 6, pp. 34-42, November-December, 2001. Original article submitted January 9, 2001. JEPTER7492020016 JEPTER749206