Detonation Characteristics of Some Dusts and Liquid-Dust Suspensions.
Abstract
This report presents progress on a study of the detonation properties of high explosive dusts when dispersed in air and suspended in liquids. The experimental facility is a modified form of a shock tube wherein the dust is blown through the tube and then a strong shock wave is transmitted into the heterogeneous mixture. The main objective of this research is to determine the detonation characteristics of dusts when dispersed in air under unconfined conditions. Important factors which bear on this problem, and hence which could be investigated, include the properties of the dust, the concentration of the dust, the size of the dust particles, the effects of excess oxygen, the energy of the initiating source, and the structure of the reaction zone. For a range of conditions, then, it is desirable to determine the pressure history within and behind the reaction zone, the wave velocity, the ignition time delay of the particles behind the leading shock wave, and to obtain high speed streak and framing photographs of the wave and reaction zone. The experimental results would be utilized in connection with an analytical treatment to develop a model for the initiation of such detonations. An interesting ramification of this research is the three-phase detonation. That is, the detonability aspects of dust particles entrained in liquid fuel droplets.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1982
- Accession Number
- ADA122296
Entities
People
- C. W. Kauffman
- J. A. Nicholls
- Kimberly M. Wood
- M. Sichel
- Peter J. Lee
Organizations
- University of Michigan