CONJUGATE NONSTATIONARY HEAT TRANSFER IN THE COURSE OF SUPERSONIC SPATIAL FLOW PAST A SPHERICALLY BLUNTED CONE MADE FROM A COMBINED MATERIAL

The fl ow at diff erent angles of attack past a spherically blunted cone, the spherical and conical parts of which are made of diff erent materials is considered. It is shown theoretically that the manufacture of the side surface of such a body from a highly thermally conductive material provides heat removal from its spherical part, which experiences maximum thermal loads and, accordingly, a decrease in the maximum body temperatures in this area. Dimensionless expressions are obtained for estimating the decrease in the maximum temperatures of a conical body in the area of its spherical bluntness, when the body is immersed in a fl ow at diff erent angles of attack, by choosing the geometry of the body and materials that have the necessary thermophysical characteristics to cover it.
   
Author:  V. I. Zinchenko, V. D. Gol'din
Keywords:  supersonic fl ow, aerodynamic heating, conjugate heat transfer, angle of attack, heat-shielding materials, laminar boundary layer
Page:  1498