An experimental and theoretical study of deflagration-to-detonation transition (DDT) in the granular explosive, CP
In this paper, the authors present results of an experimental and theoretical study of the combustion processes associated with deflagration-to-detonation transition in the granular explosive, CP. Image-enhanced, high-speed streak photography recorded the various stages of flame spread within heavily confined charges as viewed through a Lexan window in a thick-wall, stainless steel tube. To characterize the phenomena, we applied a multiphase reactive flow model based on the theory of mixtures. This nonequilibrium model treated each phase as fully compressible and incorporated a compaction model for the granular reactant. Formulation of the constitutive models included a pressure-dependent burn rate and experimentally determined porous bed permeablility. Predictions of this model were in good agreement with experimental observations.
- Research Organization:
- Fluid and Thermal Sciences Dept., Sandia National Labs., Albuquerque, NM 87185
- OSTI ID:
- 5452907
- Journal Information:
- Combust. Flame; (United States), Journal Name: Combust. Flame; (United States) Vol. 65:1; ISSN CBFMA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
400800 -- Combustion
Pyrolysis
& High-Temperature Chemistry
45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
450100* -- Military Technology
Weaponry
& National Defense-- Chemical Explosions & Explosives
CHEMICAL REACTION KINETICS
CHLORINE COMPOUNDS
COBALT COMPOUNDS
COBALT PERCHLORATES
COMBUSTION KINETICS
COMPRESSIBLE FLOW
DATA
DATA ANALYSIS
DETONATIONS
DISPERSIONS
EXPERIMENTAL DATA
FLAME PROPAGATION
FLOW MODELS
FLUID FLOW
GRANULAR MATERIALS
HALOGEN COMPOUNDS
INFORMATION
KINETICS
MATERIALS
MATHEMATICAL MODELS
MIXTURES
NUMERICAL DATA
OXYGEN COMPOUNDS
PERCHLORATES
PERMEABILITY
PHOTOGRAPHY
POROUS MATERIALS
PRESSURE DEPENDENCE
REACTION KINETICS
RESEARCH PROGRAMS
TRANSITION ELEMENT COMPOUNDS
ULTRAHIGH-SPEED PHOTOGRAPHY