Reacting condensed phase explosives in direct contact

In this article we present a new formulation and an associated algorithm for the simultaneous numerical simulation of multiple condensed phase explosives in direct contact with each other, which may also be confined by (or interacting one or more) compliant inert materials. Examples include composite rate-stick problems interaction shock waves chemically-active particles condensed-phase explosives. There are several formulations address structural response confiners due to detonations, but remains challenge most algorithms. The proposed addresses problem extending conservation laws mixture rules existing hybrid model explosive mixtures. An solution resulting system partial differential equations is presented, includes robust method retrieval densities constituents mixture. implemented hierarchical adaptive mesh refinement framework validated against results from known solutions. It evaluated robustness shock-induced flows particle-laden case-studies. shown that can simulate detonation produced military grade commercial contact, its own distinct equation state reaction rate law. ability reactive explicitly resolved heterogeneous demonstrated case-study wave high bead embedded liquid nitromethane.