Detonation Characteristics of Dust Dispersed in Air.

Abstract

This study is aimed at determining, experimentally and analytically, the detonation properties of high explosive dust when dispersed in air. The experimental facility, which is a modified form of a shock tube, is described. The experimental results obtained when a strong blast wave is transmitted into plastic coated RDX-air, RDX-nitrogen, and RDX-oxygen mixtures are described. Two sizes of particles were tested and the larger (about 150 micrometers) appeared to be easier to detonate than the smaller particles (about 10 micrometers). Ignition was observed in nitrogen but only after a long time delay. Calculated values of the detonation properties of RDX-air and various RDX-liquid fuel combinations in air are presented. The results of a numerical code prediction of the variation of pressure with distance behind the blast wave, as well as the structure of the detonation wave, are also presented.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1981
Accession Number
ADA102507

Entities

People

  • C. W. Kauffman
  • D. Purmort
  • D. R. Glass
  • J. A. Nicholls
  • M. Sichel

Organizations

  • University of Michigan

Tags

Communities of Interest

  • Counter IED
  • Materials and Manufacturing Processes
  • Space

DTIC Thesaurus Topics

  • Air Force
  • Air Force Facilities
  • Blast
  • Blast Waves
  • Computer Programs
  • Detonation Waves
  • Detonations
  • Energy
  • Explosions
  • Explosives
  • Gas Dynamics
  • High Explosives
  • High Pressure
  • Mach Number
  • Particle Size
  • Particles
  • Scientific Research

Fields of Study

  • Physics

Readers

  • Aerosol Science/Aerosol Physics
  • Combustion Dynamics and Shock Wave Physics.
  • Systems Analysis and Design