Explosively Driven Particle Fields Imaged Using a High-Speed Framing Camera and Particle Image Velocimetry
Abstract
Metallic particles have been an ingredient in high explosives for decades due to their large energy release upon combustion. A concern over the understanding of metal particle combustion release rates has driven the development of simulation packages for detonation and blast-wave dynamics. The current models for metallic particles are a primary source of error in simulations and require experimental data to adjust them. This effort provided experimental data using two existing methods, particle image velocimetry and a high speed framing camera to determine the particle speed and concentration within blast waves of different mean particle sizes of aluminum and tungsten powder. The numerical model Chinook was used to estimate particle velocity, concentration and arrival times at the point where the experimental measurements were recorded. Estimates of particle drag coefficients and were also compared to the numerical model as well as particle and shock interactions.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 2011
- Accession Number
- ADA548954
Entities
People
- Charles M. Jenkins
- Robert C. Ripley
- William H. Wilson
- Y. Horie
Organizations
- Air Force Research Laboratory