Theoretical Analysis of the Interaction between Two Burning Fuel Droplets : Part 1, Identical Droplet Case

Abstract

The effects of the interaction between two burning identical fuel droplets are analyzed exactly in the Schvab-Zeldovich formulation. The expression for the evaporation rate of each droplet is obtained in an explicit form, which shows that the interaction reduces the evaporation rate compared with that of an isolated droplet. The criterion which divides two possible types of flame surfaces, i, e., two separate flames or one coalescent flame, is derived, which will be of interest in connection with the prediction of the combustion modes in spray.