Similarity Parameters of Radiation Gasdynamics

Abstract

In general, the fundamental equations of radiation gasdynamics is a system of non-linear integro-differential equations. It is extremely difficult to solve these equations for given boundary conditions. Even in the simple case of optically thick case that the integro-differential equations reduce to a set of non-linear differential equations (cf. chapter V, § 8), the fundamental equations are still much more complicated than those of Navier-Stokes equations of a compressible fluid without radiation effects. There is no general method of finding the solutions of these non-linear equations. In order to bring out the essential features of the flow problems of radiation gasdynamics it is desirable to find the important parameters which characterize the flow problems.