Accession Number : AD0681337

Title :   RELAXATION PROCESSES IN SHOCK WAVES,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Stupochenko,E. V. ; Losev,S. A. ; Osipov,A. I.

Report Date : 16 FEB 1968

Pagination or Media Count : 442

Abstract : The present state of experimental and theoretical investigations of relaxation processes taking place in shock waves in gases and air is described and analyzed. Particular attention is paid to physical aspects of relaxation phenomena and to elucidation of patterns in processes taking place in the establishment of statistical equilibrium with respect to various degrees of freedom. The first chapter deals with general problems and presents a qualitative description of the relaxation process and the fundamentals of experimental methods. The second deals with shock tubes as a means for generating and studying strong shock waves and related phenomena. Chapter three deals with the experimental methods used for investigating nonequilibrium phenomena taking place in shock waves. Chapter four is devoted to a theoretical analysis of relaxation processes and available experimental data. Chapter five deals with nonequilibrium phenomena taking place behind a shock front in air. Chapter six briefly outlines the gas flow properties in relaxation and contains a brief analysis of gaskinetic methods for deriving equations of equilibrium and relaxation hydrodynamics and methods of the thermodynamics of irreversible processes. (Author)

Descriptors :   (*SHOCK WAVES, RELAXATION TIME), STATISTICAL ANALYSIS, SHOCK TUBES, NONEQUILIBRIUM FLOW, THERMODYNAMICS, IRREVERSIBLE PROCESSES, USSR

Subject Categories : Aerodynamics
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE