Numerical modeling of the deflagration-to-detonation transition

Conference · Sat Dec 31 23:00:00 EST 1977

OSTI ID:6696790

Forest, C A

The effect of a confined porous bed of burning explosive in contact with a solid explosive is studied by computer simulation. The burning is modeled using a bulk burn model that is a function of the surface area and the pressure. Once pressure excursions occur from the confined burning the transition to detonation is modeled using a pressure-dependent heterogeneous explosive shock decomposition model called Forest Fire. The occurrence of detonation in the solid explosive is shown to be dependent upon the surface-to-volume ratio, the confinement of the porous bed, and the geometry of the system.

• Research Organization: Los Alamos Scientific Lab., NM (USA)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 6696790
• Report Number(s): LA-UR-78-1148; CONF-780915-1
• Country of Publication: United States
• Language: English

Related Subjects

45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
450100* -- Military Technology
Weaponry
& National Defense-- Chemical Explosions & Explosives
CHEMICAL EXPLOSIONS
CHEMICAL REACTIONS
COMBUSTION
DETONATIONS
EXPLOSIONS
MATHEMATICS
NUMERICAL ANALYSIS
OXIDATION
SAFETY
SIMULATION
THERMOCHEMICAL PROCESSES