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EPL (Europhysics Letters) 96, 6 (2011) 68007
Mesoscopic simulations of shock-to-detonation transition in reactive liquid high explosive
Jean-Bernard Maillet 1, Emeric Bourasseau 1, Nicolas Desbiens 1, Germain Vallverdu 2, Gabriel Stoltz 3
(2011-12-14)

An extension of the model described in a previous work (see Maillet J. B. et al., EPL, 78 (2007) 68001) based on Dissipative Particle Dynamics is presented and applied to a liquid high explosive (HE), with thermodynamic properties mimicking those of liquid nitromethane. Large scale nonequilibrium simulations of reacting liquid HE with model kinetic under sustained shock conditions allow a better understanding of the shock-to-detonation transition in homogeneous explosives. Moreover, the propagation of the reactive wave appears discontinuous since ignition points in the shocked material can be activated by the compressive waves emitted from the onset of chemical reactions.
1:  Direction des applications militaires (CEA/DAM)
CEA
2:  Institut Pluridisciplinaire de Recherche sur l'Environnement et les Matériaux (IPREM)
CNRS : UMR5254 – Université de Pau et des Pays de l'Adour [UPPA]
3:  Centre d'Enseignement et de Recherche en Mathématiques et Calcul Scientifique (CERMICS)
Ecole des Ponts ParisTech
Physics/Physics/Computational Physics

Physics/Physics/Chemical Physics