Accession Number : AD0289007

Title :   MAGNETO-FLUID-MECHANIC BLAST WAVES IN A MEDIUM WITH FINITE ELECTRICAL CONDUCTIVITY

Corporate Author : RAND CORP SANTA MONICA CALIF

Personal Author(s) : LYKOUDIS,PAUL S.

Report Date : NOV 1962

Pagination or Media Count : 1

Abstract : The classical theory of blast waves is extended for the case of an electrically conducting medium in the presence of a magnetic field. The general case is presented in which waves are generated by the sudden release of energy in a plane (piston problem), line (cylindrical symmetry), or point (spherical symmetry). The medium is assumed to possess electrical conductivity varying with an appropriate power of temperature, whereas the mass-density distribution of the medium in the undisturbed region and the imposed magnetic fieldARE ALLOWED TO BE POWER FUNCTIONS OF THE SPATIAL COORDINATE. The case of cylindrical symmetry with a constant density in the undistorted fluid region and a constant magnetic field parallel to the cylindrical wave is discussed in detail. It is found that the magnetic field decelerates the fluid behind the shock wave, producing at the same time higher temperatures. (Author)

Descriptors :   *BLAST, *FLUID MECHANICS, *GAS FLOW, *HYPERSONIC FLOW, *MAGNETIC FIELDS, *MAGNETOHYDRODYNAMICS, *SHOCK WAVES, ELECTRICAL CONDUCTIVITY

Distribution Statement : APPROVED FOR PUBLIC RELEASE