Accession Number : AD0284924

Title :   SELF-SIMILAR AND PSEUDOSIMILAR SOLUTIONS OF BLAST WAVES IN ELECTROGASDYNAMICS

Corporate Author : UNIVERSITY OF SOUTHERN CALIFORNIA LOS ANGELES ENGINEERING CENTER

Personal Author(s) : OSHIMA,KOICHI

Report Date : AUG 1962

Pagination or Media Count : 1

Abstract : Using the electrogasdynamical equations and the Poisson equation, a characteristic length Re, which is proportional to the Debye length divided by a ionization rate of a gas, is defined. The length plays an important role in the electrogasdynamical blast wave. Since the classical gasdynamical blast wave with a constant energy contained in it has a characteristic length, Ro, which is defined by the constant energy, the essential parameters of the electrogasdynamical blast wave with a constant energy in it are Ro and Re, or the square of its ratio, Ao. A self-similar solution of the electrogasdynamical blast wave is found. Its shock front propagates exponentially with time and its energy also increases exponentially with time. Several numerical calculations with various values of the parameter, Re, have been carried out. This solution contains a classical gasdynamical blast wave as a limiting case of Re approaches infinity. (Author)

Descriptors :   *GAS FLOW, *HYPERSONIC FLOW, *PLASMAS(PHYSICS), *SHOCK WAVES, *RAREFIED GAS DYNAMICS, ELECTRONS

Distribution Statement : APPROVED FOR PUBLIC RELEASE