Accession Number : AD0637997

Title :   THE STRUCTURE OF A SHOCK WAVE WITH ACCOUNT TAKEN OF THE TRANSFER OF MOMENTUM AND ENERGY BY RADIATION.

Corporate Author : JOHNS HOPKINS UNIV SILVER SPRING MD APPLIED PHYSICS LAB

Personal Author(s) : Imshennik,V. S. ; Morozov,Yu. I.

Report Date : 12 JUL 1966

Pagination or Media Count : 34

Abstract : The following simplifying assumptions are made in the equations of relativistic gasdynamics with radiative energy transfer: negligible pressure ahead of the shock, constant absorption coefficient, and ideal gas with an effective adiabatic exponent. The angular distribution of radiation intensity is averaged using Eddington's method or a diffusion approximation. The two methods of averaging lead to the same approximate expressions, differing only slightly in the values of numerical coefficients. For a general case, familiar ordinary nonlinear differential equations, to be solved numerically, are derived. The integral curve satisfying the boundary conditions passes through two singular points. Although only first-order relativistic effects are considered, the radiative transfer is shown to have a pronounced effect on the shock structure, depending on the flow density and velocity. (Author)

Descriptors :   (*SHOCK WAVES, *THERMAL RADIATION), MOMENTUM, TRANSPORT PROPERTIES, ENERGY, GAS FLOW, COMPRESSIBLE FLOW, PRESSURE, DIFFERENTIAL EQUATIONS, USSR

Subject Categories : Fluid Mechanics
      Thermodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE