要約

The approach for mathematical simulation of quasi-steady self-sustaining combustion of energetic materials is suggested. It is shown that in the case of relatively strong heat release in condensed phase reactions, the temperature profile with subsurface maximum is established. This leads to instability in the reaction zone, the formation of "hot spots," and the appearance of intrinsic turbulence. The approach called "the maximum Le Chatelier’s principle action" is formulated, which implies diminishing instability via enlargement of heat feedback from the gas phase due to increase in the magnitude of coefficients of heat and mass transfer. The same approach is applied to classical combustion instability of the Zel’dovich-Novozhilov type.