An Energetic Model for Detonation of Granulated Solid Propellants

Carmen López-Munoz, J.R. García-Cascales, F.J.S. Velasco and R.A. Otón-Martínez
Additional contact information
Carmen López-Munoz: E.T.S. Ingeniería Industrial, Universidad Politécnica de Cartagena, Dr. Fleming s/n, 30202 Cartagena, Spain
J.R. García-Cascales: E.T.S. Ingeniería Industrial, Universidad Politécnica de Cartagena, Dr. Fleming s/n, 30202 Cartagena, Spain
F.J.S. Velasco: E.T.S. Ingeniería Industrial, Universidad Politécnica de Cartagena, Dr. Fleming s/n, 30202 Cartagena, Spain
R.A. Otón-Martínez: University Centre of Defense at the Spanish Air Force Academy, 30720 San Javier (Murcia), Spain

Energies, 2019, vol. 12, issue 23, 1-16

Abstract: Unexpected detonation of granular solid energetic materials is a key safety issue in the propellants manufacturing industry. In this work, a model developed for the characterization of the early stages of the detonation process of granular solid energetic materials is presented. The model relies on a two-phase approach which considers the conservation equations of mass, momentum, and energy and constitutive relations for mass generation, gas-solid particle interaction, interphase heat transfer, and particle-particle stress. The work considers an extension of approximated Riemann solvers and Total Variation Diminishing (TVD) schemes to the solid phase for the numerical integration of the problem. The results obtained with this model show a good agreement with data available in the literature and confirm the potential of the numerical schemes applied to this type of model. The results also permit to assess the effectiveness of different numerical schemes to predict the early stages of this transient combustion process.

Keywords: detonation; safety; granular solid energetic materials; predictive tool; numerical schemes (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:12:y:2019:i:23:p:4459-:d:290057

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