NAVIER-STOKES COMPUTATIONS OF HEAT-TRANSFER FOR HIGH-SPEED FLOWS

Navier-Stokes computations of heat transfer at high speeds have been a source of considerable difficulty. Problems arise not only due to the particular numerical scheme employed but also due to the resolution o f the computational mesh. A comparative study of selected numerical sc hemes is presented herein, with regards to their ability to accurately predict the heating loads along the surface of the body. The grid dep endency effects of these schemes are investigated. A parametric study is carried out and it is shown that the grid resolution for the accura te prediction of wall flux quantities is dependent on the free stream Mach and Reynolds numbers. A correlation is developed, for the generic class of blunt configurations studies herein, for predicting the grid requirements based on the free stream Mach and Reynolds numbers.