Mathematical Modeling of Heat and Mass Transfer Processes with Chemical Reaction at Polymeric Material Ignition by Several Small-Size Hot Particles

摘要

Numerical research of interconnected heat and mass transfer processes in the "two hot particles-polymeric material-air" system was executed. The joint effect of several local heat sources on the main integrated characteristic of ignition process (ignition delay time) was established. Two ignition models characterized by the relative positioning of hot particles on a polymeric material surface were revealed. Besides, there were established characteristics of local heat sources and the distance between them (700K < T-p < 1150 K and L > 1.5 or T-p > 1150 K and 0.25 < L < 1.5) when regularities of heat and mass transfer processes in the "two hot particles-polymeric material-air" system are similar to regularities of heat and mass transfer processes in the "single hot particle-polymeric material-air" system.