Accession Number : AD0682795

Title :   SUPERSONIC GAS FLOW PAST BLUNTED CONES WITH RADIATION TAKEN INTO ACCOUNT,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Fomin,V. N. ; Shulishnina,N. P.

Report Date : 09 FEB 1968

Pagination or Media Count : 11

Abstract : The problem of a hypersonic flow of radiating gas past the lateral surface of a blunted cone is considered. The solution is sought by the method of characteristics. A complete system of gas-dynamics equations describing the flow past a spherically blunted cone with the radiation effect taken into account is derived. The flow region is divided into two zones: zone I, in which the solution is obtained by the method of integral relations; and zone II, where the method of characteristics is used. The results of calculations made on a computer of the flow past spherically blunted cones of various half angles in the wide range of M (up to 33) and P with and without taking radiation into account are presented in graphs (temperature, velocity, density and pressure distributions, shape and location of shock wave, and flow field parameters between a cone and a shock wave). They show that the effects of radiation are appreciable only in the gas layer close to the cone's surface. It is stated that the accurate results obtained are valid for an optically thin shock layer and may be used in calculating flows of other than air - gas mixtures. A different procedure is outlined when the above-mentioned condition is not satisfied. (Author)

Descriptors :   (*CONICAL BODIES, HYPERSONIC CHARACTERISTICS), BLUNT BODIES, EQUATIONS OF MOTION, THERMAL RADIATION, MACH NUMBER, SHOCK WAVES, USSR

Subject Categories : Aerodynamics
      Fluid Mechanics
      Thermodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE