Similarity Parameters of Radiation Gasdynamics
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.
KeywordsFlow Field Mach Number Nusselt Number Free Path Radiation Pressure
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