ABSTRACT
The large radiative heating rates experienced by a high-speed entry body may cause considerable decrease in the body mass — an effect of particular importance in the study of meteorite and planetary probe entries. A large number of reliable approximate methods available for including nongray radiation in the radiative transport equations, which enable one to avoid multiple integration over the radiation spectrum in cases when iteration procedures for coupling the gas dynamical and radiation fields are necessary. Apart from a large number of numerical solutions, useful approximate formulas have been obtained for determining radiative transfer to entry bodies with and without radiation-driven ablation of the surface. Of the various approaches that have been applied thus far to the treatment of radiative heat transfer to a hypersonic planetary entry body that based on the full viscous shock layer (FVSL) equations appears to be the most accurate and versatile.
