Numerical investigation of explosion suppression by inert particles in straight ducts

A multi-phase theory for the detonation of granular explosives containing an arbitrary number of solid components

“…Equations (22) shows that solid component energy dissipation is generated by changes in internal energy, classical compression work and granular compaction. With the exception of compaction dissipation, Eqn.…”

“…For simplicity the final forms of Eqns. (22) A C C E P T E D M A N U S C R I P T and (23) are given here; the details of these derivations are provided in Appendix A.…”

“…The modeling of gas-solid flow within fluidized beds has been widely studied in the chemical and petroleum engineering communities because of its relevance to flows in reactors and vertical risers [43,44,10,27,26]. Gas flows in porous media have also been examined [45,20], and reactive dusty gas flows have been investigated because of their potential to detonate in the presence of an ignition source [23,49,40,22]. Many of the models used to analyze these systems are based on the Eulerian multiphase continuum approach, where the flow field is represented by overlapping continua which coexist at each spatial location.…”

Interaction of debris with a solid obstacle: Numerical analysis

“…The numerical scheme used in this paper is based on algorithms shown elsewhere [22,23] and is not the focus of this study. Therefore, the details are not described here.…”

Explosion suppression by a cloud of particles: Numerical analysis of the initial processes

“…As shown in the paper, the beginning of the process is already complex and reveals interesting phenomena. This paper is an extension of the author's previous work [3], where the objective was the modelling of explosion suppression in a long duct and the interaction of a shock wave with a cloud of particles.…”