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Open AccessArticle

An Energetic Model for Detonation of Granulated Solid Propellants

E.T.S. Ingeniería Industrial, Universidad Politécnica de Cartagena, Dr. Fleming s/n, 30202 Cartagena, Spain
University Centre of Defense at the Spanish Air Force Academy, 30720 San Javier (Murcia), Spain
Author to whom correspondence should be addressed.
Energies 2019, 12(23), 4459;
Received: 1 October 2019 / Revised: 12 November 2019 / Accepted: 20 November 2019 / Published: 22 November 2019
(This article belongs to the Special Issue Modelling of Thermal and Energy Systems)
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. View Full-Text
Keywords: detonation; safety; granular solid energetic materials; predictive tool; numerical schemes detonation; safety; granular solid energetic materials; predictive tool; numerical schemes
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MDPI and ACS Style

López-Munoz, C.; García-Cascales, J.; Velasco, F.; Otón-Martínez, R. An Energetic Model for Detonation of Granulated Solid Propellants. Energies 2019, 12, 4459.

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