Abstract
Numerical calculation on flame propagation of a linear fuel droplet array was conducted with focusing on effect of pre-evaporation of droplets. The calculations considered flame propagation of n-decane droplet array in ambient air. In these calculations, pre-evaporation of droplets had been promoted before heat source for ignition was set next to an edge droplet. Some calculations were conducted with different degree of pre-evaporation by changing the time when ignition heat source was set at. Interesting structure like triple flame was observed in propagating flame. Also, flame propagation rate V_f significantly increased when flammable gas layer around each droplet was combined. In addition, increase of V_f was also observed by microgravity experiments.
