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From laminar to turbulent detonations in energetic materials from molecular dynamics simulations
[摘要] The structure of a self-sustained detonation wave in solid energetic materials was studied using molecular dynamics simulations. Energetic materials are described by the AB model with parameters modified to investigate the detonation-wave structures. It is found that depending on the reaction barrier for the exothermic reactions driving the detonation and the boundary conditions of the sample this simple model exhibits a detonation structure that can range from a planar to a complex turbulent detonation. The different regimes of condensed-phase detonation seen are similar to those observed in gases and diluted liquids.
[发布日期]  [发布机构] University of South Florida, 4202 East Fowler Avenue, Tampa; FL; 33620-5700, United States^1;Naval Research Laboratory, Washington; DC; 20375-5320, United States^2
[效力级别]  [学科分类] 
[关键词] Condensed phase;Detonation structures;Detonation waves;Molecular dynamics simulations;Reaction barriers;Simple modeling [时效性] 
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