Shock-to-detonation transition: A model problem

Journal Article · Fri Jan 31 23:00:00 EST 1992 · Physics of Fluids A; (United States)

DOI:https://doi.org/10.1063/1.858312· OSTI ID:5649508

Bdzil, J B ^[1]; Kapila, A K ^[2]

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1. Los Alamos National Laboratory, Group M-7, Mail Stop P952, Los Alamos, New Mexico 87545 (United States)
2. Rensselaer Polytechnic Institute, Department of Mathematical Sciences, Troy, New York 12180-3590 (United States)

The process by which a trigger ignited shockless weak detonation is transformed into a classical Zeldovich--von Neumann--Doering (ZND) detonation as the trigger wave decelerates is considered in detail. This occurs as the trigger speed passes through the Chapman--Jouguet velocity {ital D}{sub CJ}. The model that is developed describes the birth and subsequent growth of a shock in the weak detonation reaction zone. This shock ultimately sustains the shock-ignited ZND detonation. The time-dependent solution presented here fills one of the many gaps in the understanding of detonation flows; an understanding based almost entirely on steady wave structures.

• OSTI ID: 5649508
• Journal Information: Physics of Fluids A; (United States), Journal Name: Physics of Fluids A; (United States) Vol. 4:2; ISSN 0899-8213; ISSN PFADE
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400800* -- Combustion
Pyrolysis
& High-Temperature Chemistry
CHEMICAL EXPLOSIONS
CHEMICAL REACTION KINETICS
COMBUSTION WAVES
COMPRESSIBLE FLOW
DETONATIONS
EXPLOSIONS
FLUID FLOW
IGNITION
KINETICS
PRESSURE EFFECTS
REACTION KINETICS
SHOCK WAVES
TEMPERATURE EFFECTS
TRANSIENTS
UNSTEADY FLOW
WAVE PROPAGATION