Blast Mitigation Using Water Mist: Test Series II
Abstract
The effects water mist has on the overpressures produced by the detonation of 50 lb equivalent of high explosives (HE) TNT, Destex, and PBXN-109 in a chamber is reported. The overpressures for each charge density were measured with and without mist preemptively sprayed into the space. The impulse, initial blast wave, and quasi-static overpressure measured in the blast mitigation experiments were reduced by as much as (40%, 36%, and 35%) for 50 lbs TNT, (43%, 25%, and 33%) for 50 lbs TNT equivalent Destex, and (49%, 39%, and 41%) for 50 lbs TNT equivalent PBXN-109 when water mist was sprayed 60 seconds prior to detonation at a concentration of 70 g/m sup3 and droplet Sauter Mean Diameter (SMD) of 54 micrometer. These results suggest that current water mist technology is a potentially promising concept for the mitigation of overpressure effects produced from the detonation of high explosives.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 12, 2009
- Accession Number
- ADA499491
Entities
People
- Frederic W. Williams
- Gerald G. Back
- Heather Willauer
- John O'connor
- John P. Farley
- Matthew C. Kennedy
- Ramagopal Ananth
- Victor M. Gameiro
Organizations
- United States Naval Research Laboratory