Accession Number : AD0695765

Title :   INFINITELY STRONG SHOCK STRUCTURE IN A BINARY GAS MIXTURE,

Corporate Author : ILLINOIS UNIV URBANA COORDINATED SCIENCE LAB

Personal Author(s) : Yu,E. Y.

Report Date : OCT 1969

Pagination or Media Count : 26

Abstract : The problem of infinitely strong shock structure in a binary gas mixture is formulated using a bimodel approximation for each gas constituent. The bimodel consists of a delta function for the hypersonic flow upstream and a nonsingular function for the hot flow downstream. The Boltzmann equations are split into four equations. Under the local Maxwellian approximations for the nonsingular functions and an approximations on the force constants in the molecular interaction the problem is reduced to a numerical integration of three moment equations involving three nondimensional parameters, namely, the mass ratio, the number density ratio, and the cut-off parameter ratio. The behavior of the singular points of the system of three moment equations at plus or minus infinity is analyzed, and a numerical integration is proposed. (Author)

Descriptors :   (*SHOCK WAVES, NUMERICAL ANALYSIS), (*GAS TURBINES, ONE DIMENSIONAL FLOW), HYPERSONIC FLOW, PARTICLES, EQUILIBRIUM(PHYSIOLOGY), APPROXIMATION(MATHEMATICS), NUMERICAL METHODS AND PROCEDURES

Subject Categories : Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE