Numerical study of flows of reacting composite mixtures

A distributed mathematical model is proposed to describe a flow of a mixture of gases, fine particles of a reacting metal, and droplets of a hydrocarbon fuel. The heterogeneous chemical reaction of low-temperature oxidation of the metal, the homogeneous oxidation reaction of the reacting vaporized liquid fuel, and the difference in phase velocities and temperatures are taken into account. It is shown that this model can be used to describe the problems of detonation in a mixture of a reacting gas and reacting solid particles, and the problems of ignition of a mixture of aluminum particles and tridecane droplets.