Transition to double Mach stem for nuclear explosion at 104 ft height of burst. Memorandum report

Technical Report · Tue Nov 17 04:00:00 EST 1981

OSTI ID:5406498

Fry, M; Picone, J M; Boris, J P; Book, D L

A nuclear height-of-burst (HOB) calculation has been performed using a two-dimensional flux-corrected transport (FCT) code. The calculation predicts the transition from regular to Mach reflection at ground ranges approximately equal to the HOB. The characteristics of the resulting waveforms are basically the same as those found in shock tube experiments when planar shocks reflect from wedges, and appear highly regular. In the double-Mach reflection region the first Mach stem is observed to toe out markedly compared with the planar case. In the high-over-pressure (regular reflection) region initialization errors and inadequate resolution caused pressure peaks to appear too low by about 20%. In the Mach reflection region the peak pressures are in good agreement with experimental data.

• Research Organization: Naval Research Lab., Washington, DC (USA)
• OSTI ID: 5406498
• Report Number(s): AD-A-107748/6; NRL-MR-4630
• Country of Publication: United States
• Language: English

Related Subjects

45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
450200* -- Military Technology
Weaponry
& National Defense-- Nuclear Explosions & Explosives
ALTITUDE
ATMOSPHERIC EXPLOSIONS
COMPUTERIZED SIMULATION
DIMENSIONS
EXPLOSIONS
HEIGHT
NUCLEAR EXPLOSIONS
REFLECTION
SHOCK WAVES
SIMULATION
TWO-DIMENSIONAL CALCULATIONS