Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : October 08, 2022 - October 09, 2022
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, Tig, is a key parameter that controls the phenomenon. Both the models yield the (dimensionless) propagation velocity as a function of Tig. Propagation limits are predicted when considering the heat loss to the environment. Possible extensions of the simple models are also discussed.
