Accession Number : AD0678426

Title :   CONVECTIVE HEAT TRANSFER IN RADIATING GAS (KONVEKTIVNYI TEPLOOBMEN V IZUCHAYUSHCHEM GAZE),

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Bogolepov,V. V. ; Neiland,V. Ya.

Report Date : 09 NOV 1967

Pagination or Media Count : 13

Abstract : The problem of convective heat transfer in a steady uniform hypersonic viscous gas flow past a blunt body is considered with radiation taken into account. A detailed analytical investigation of a certain form of boundary-layer equations and boundary conditions corresponding to flows with 'volume' luminescence and nearly similar flow regimes with a shock layer of small optical thickness. The solutions were sought in the stagnation region by the method of external and internal expansions in the small parameter epsilon = rho sub infinity/rho (density ratio across the shock wave) at M approaching infinity, taking account of the emission and absorption of radiant energy. The equations and boundary conditions assume a different form, depending on which of the dissipative processes-heat conductivity or absorption of radiation by the gas is predominant in the narrow layer near the wall cooled at the expense of radiation. Solutions are presented for small but finite optical thicknesses of the inviscid shock layer and for the case when absorption is substantial only in the boundary layer and also for a feebly radiating gas with a shock layer of arbitrary thickness. (Author)

Descriptors :   (*CONVECTION(HEAT TRANSFER), HYPERSONIC CHARACTERISTICS), BLUNT BODIES, BOUNDARY LAYER, SHOCK WAVES, LUMINESCENCE, STAGNATION POINT, USSR

Subject Categories : Aerodynamics
      Fluid Mechanics
      Thermodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE