Transition of porous explosive combustion into detonation

Journal Article · Sun Jul 01 00:00:00 EDT 1984 · Combust., Explos. Shock Waves (Engl. Transl.); (United States)

DOI:https://doi.org/10.1007/BF00749921· OSTI ID:6102079

Ashatov, I S; Vainshtein, P B

This article considers the planar one-dimensional motion of a porous medium consisting of solid contacting particles (explosive grains), with space between particles filled with gas. It is established by the numerical analysis performed that if the work of intergranular pressure forces is expended solely in gas heating, then a smooth transition from combustion to detonation is realized in porous explosives. A retonation wave was propagated through the unreacted material between the initial and secondary combustion zones in the majority of experiments performed. It is noted that at the pressure values characteristic of steady-state detonation of porous explosives, it is necessary to consider the compressibility of the particle material as well as the factors of nonthermal ignition and homogeneous burnup of explosives behind the shock front.

• Research Organization: Moscow, USSR
• OSTI ID: 6102079
• Journal Information: Combust., Explos. Shock Waves (Engl. Transl.); (United States), Journal Name: Combust., Explos. Shock Waves (Engl. Transl.); (United States) Vol. 20:1; ISSN CESWA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400800* -- Combustion
Pyrolysis
& High-Temperature Chemistry
CHEMICAL EXPLOSIVES
CHEMICAL REACTIONS
COMBUSTION
COMPRESSIBILITY
DETONATIONS
EXPLOSIVES
FLUIDS
GASES
HEATING
IGNITION
MATERIALS
MECHANICAL PROPERTIES
ONE-DIMENSIONAL CALCULATIONS
OXIDATION
PARTICLES
POROUS MATERIALS
PRESSURE EFFECTS
SHOCK WAVES
STEADY-STATE CONDITIONS
THERMOCHEMICAL PROCESSES
WAVE PROPAGATION