NONEQUILIBRIUM STRUCTURE OF HYDROMAGNETIC GAS-IONIZATING SHOCK FRONTS IN ARGON

Abstract

A 'low temperature' collisionally-ionizing shock with oblique magnetic field is studied to determine whether certain concepts which exist in the current literature are relevant. Nondimensionalized equations governing the nonequilibrium structure of such a front propagating into un-ionized argon are formulated using ionization rates and an electron energy equation. Comparison of the magnitudes of viscous and magnetic Reynolds numbers within this front indicates that, if a structure exists, it must consist of a narrow 'imbedded' viscous shock standing upstream of a much wider hydromagnetic interaction and ionization relaxation zone. Hence, a modified form of the Zeldovich-von Neumann-Doring (ZND) approximation is applicable to the structure problem. It is shown that in this approximation nontrival steady-state structures cannot be constructed for 'fast' gas-ionizing shocks. On the other hand, solutions are possible for 'slow' waves.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1967
Accession Number
AD0650828

Entities

People

  • Martin I. Hoffert

Organizations

  • New York University Tandon School of Engineering

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Charged Particles
  • Computational Fluid Dynamics
  • Differential Equations
  • Electric Fields
  • Electron Energy
  • Electron Gas
  • Electrons
  • Equations
  • Fluid Dynamics
  • Mach Number
  • Magnetic Fields
  • Military Research
  • Physics
  • Physics Laboratories
  • Radiation
  • Reynolds Number
  • Shock Waves

Fields of Study

  • Physics

Readers

  • Combustion Dynamics and Shock Wave Physics.
  • Fluid Dynamics.
  • Plasma Physics.

Technology Areas

  • Microelectronics