Accession Number : AD0261468

Title :   A KINETIC MODEL FOR HYPERSONIC RAREFIED GAS FLOW

Corporate Author : GENERAL ELECTRIC CO PHILADELPHIA PA MISSILE AND SPACE DIV

Personal Author(s) : ENOCH,JACOB

Report Date : APR 1961

Pagination or Media Count : 1

Abstract : A kinetic model, which is based on an approximation to the complete Boltzmann equation, is developed for the purpose of solving flow problems in the high velocity ratio rarefied gas regime. The approximation consists of substituting appropriate delta-functions for certain portions of the distribution function wherever they appear in a collision integral. The Boltzmann equation reduces to a first order linear inhomogeneous partial differential equation in this approximation, and the detailed intermolecular differential scattering cross section appears explicitly in the inhomgeneous term. The model is applied to the solution of the hypersonic couette flow of a rarefied hard sphere gas. (Author)

Descriptors :   *HYPERSONIC FLOW, *INTEGRAL EQUATIONS, *RAREFIED GAS DYNAMICS, COUETTE FLOW, EQUATIONS, FUNCTIONS(MATHEMATICS), GAS FLOW, KINETIC THEORY, MATHEMATICAL MODELS, PARTIAL DIFFERENTIAL EQUATIONS

Distribution Statement : APPROVED FOR PUBLIC RELEASE