粉塵雲中の燃焼波伝播に関する考察

抄録

This paper discusses discrete and continuum models to describe combustion-wave propagation through a dust cloud. The discrete model resolves individual particles, whereas the continuum model treats the dust cloud as a continuum phase. A simple formulation that assumes constant density and thermal equilibrium between the gas phase and the dust cloud is mainly considered. The dimensionless ignition temperature, T_ig, is a key parameter that controls the phenomenon. Both the models yield the (dimensionless) propagation velocity as a function of T_ig. Propagation limits are predicted when considering the heat loss to the environment. Possible extensions of the simple models are also discussed.