Study of flame structure for mixed solid fuels based on ammonium perchlorate and polybutadiene rubber

Results are presented for a numerical study of the flame structure for mixed solid fuels (MSF) based on ammonium perchlorate (APC) and APC + polybutadiene rubber (PBR). The combustion process is modelled using formal kinetics detailed on the basis of experimental data for combustion of a layered system with pressures of $\sim$ 0.26 atm. A simplified set of equations obtained from a complete Navier–Stokes set with the limiting transtition M $\to$ 0 is used in order to construct a solution. Flame structure is studied for pressures of $\sim$ 40 atm, and values of thermal flows into the k-phase are obtained.