Journal of Chemical Engineering of Japan, Vol.33, No.1, 41-48, 2000
Effect of interaction between diffusion fluxes on evaporation or condensation of binary solution drop under forced convection
In order to investigate the effect of interaction between diffusion fluxes on mass transfer from a binary solution drop, numerical analyses of mass transfer around a binary solution drop under forced convection are made by using a finite difference method for driving force ratios Delta omega(B)/Delta omega(A) = -10 -10, diagonal Schmidt number Sc-AA = 1-3, Sc-BB = 0.5-3, nondiagonal Schmidt number Sc-AB = 1-10, Sc-BA = 1-10 and Reynolds number Re-p = 1-200. The effect of driving force ratios, Reynolds numbers, and multicomponent Schmidt numbers on the concentration profiles and the diffusion fluxes of a binary solution drop are discussed. A new correlation is proposed for the effect of interaction between diffusion fluxes on mass transfer around a binary solution drop under forced convection.