Accession Number : AD0275884

Title :   THE HYPERSONIC APPROXIMATION FOR THE SHOCK STRUCTURE OF A PERFECT GAS WITH THE SUTHERLAND VISCOSITY LAW

Corporate Author : CALIFORNIA INST OF TECH PASADENA FIRESTONE FLIGHT SCIENCES LAB

Personal Author(s) : BUSH,WILLIAM B.

Report Date : FEB 1962

Pagination or Media Count : 1

Abstract : The classical Navier-Stokes treatment of the shock wave strucure is investigated for a perfect gas with constant specific heats. The viscosity of the gas is presribed according to the Sutherland law. he Prandtl number is 3/4. The limiting forms of the solution as the upstream flow Mach number approaches infinity, with all other parameters held fixed, is studied. two distinct asymptotic seies are found for the portions of the shok adjacent to the uniform regions upstrem and downstream of the shok and these expansions re matched in an intermediate region of common validity. The leading terms of a uniformly valid expansion are otained by combining elements from both expansions. Special attention s given to the entropy and the entropy production rate in the shock wave. (Author)

Descriptors :   *GAS FLOW, *HYPERSONIC CHARACTERISTICS, *SHOCK WAVES, ENTHALPY, ENTROPY, IRREVERSIBLE PROCESSES, KINETIC THEORY, TEMPERATURE, THERMODYNAMICS, VELOCITY, VISCOSITY

Distribution Statement : APPROVED FOR PUBLIC RELEASE