PRECURSOR IONIZATION DUE TO PHOTOIONIZATION OF H2 IMPURITIES IN ARGON SHOCKS

Abstract

A theory was recently proposed to explain precursor effects ahead of shock waves. An indirect test of this theory was made. Experiments were performed in a pressure driven shock tube. The driven gas was Argon and the shock Mach number was 13.2. Small amounts of H2 (2-75 microns Hg) were added to the Argon (2000 microns Hg). Precursor profiles were recorded as a function of the H2 partial pressure. These profiles are in good agreement with the theoretical calculations. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1967
Accession Number
AD0666102

Entities

People

  • Daniel S. Wilson
  • Samuel Lederman

Organizations

  • New York University Tandon School of Engineering

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Agreements
  • Applied Mechanics
  • Electromagnetic Radiation
  • Electrostatic Probes
  • Frequency
  • Impurities
  • Ionization
  • Mach Number
  • Measurement
  • Microwaves
  • Military Research
  • Partial Pressure
  • Photoionization
  • Radiation
  • Shock Tubes
  • Tubes
  • United States

Fields of Study

  • Physics

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Combustion science or combustion engineering.
  • Plasma Physics.