Numerical study of ground effect on the detonability characteristics of unconfined two-phase clouds

A numerical study has been made to investigate the ground effect on the detonability characteristics of a two-phase unconfined cloud of fuel and air. Equivalence ration, turbulence, volume, shape and uniformity are the most important factors that affect the detonability of a cloud. The effect of the distance of the dispersing device from the ground on these significant factors has been demonstrated in this article. A finite volume method was used to solve the equations describing the gas phase. A discrete particle technique was applied to represent the liquid spray. The k-ε model was used for modeling the gas phase turbulence. Theoretical considerations and comparison with associated experimental values were made for validation. (author)