Calculation of Multiple Burst Interactions for Six Simultaneous Explosions of 120 Ton ANFO Charges
Abstract
The REFLECT code was modified for calculation of the interaction of six equal blast waves from simultaneously detonated charges in a hexagonal pattern. The objective has been to determine whether the REFLECT code, if further modified, would have the potential for accurate calculation of the interaction of six blast waves. In its present form the code is called REFLECT-3. A calculation was performed for the conditions of the MISERS BLUFF II-2 test, six 120-T ANFO charges separated by 100 m. Comparisons with overpressure and shock arrival time measurements show good agreement, within the data uncertainty, until the incident shock is within about 7 m (20 feet) of the array center. The peak overpressure predicted for the main reflected wave, which contains the highest pressures, agrees well with test results near the array center. Improvement would require reducing the cell sizes and applying the 'sharp' (rankine-Hugoniot) shock modelling not just to the initial shock but to two later shocks as well. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 15, 1979
- Accession Number
- ADA091978
Entities
People
- J. R. Ruetenik
- Norman P. Hobbs
- Robert F. Smiley