Combustion of a mixed solid fuel with the additive of boron powder

A conjugated physical and mathematical model for the combustion of a mixed solid fuel with the addition of polydisperse boron powder is presented. The gas-dynamic processes in a two-phase, multi-velocity, and multi-temperature heat-conducting medium, as well as heat transfer and reaction processes in solid fuel are taken into account in this model above the solid fuel surface. Boundary conditions for the equality of heat and mass flows of fuel components are set on the fuel surface. From the numerical solution of the system of equations, the dependence of the burning rate of a mixed solid fuel containing boron particles on the pressure above the fuel surface is determined.