Abstract

Numerical analyses for mass transfer from a binary solution drop with surface mass ejection or suction are made by using a finite difference method for diagonal Schmidt number Sc AA =1-3, Sc BB =1-2, Reynolds number Re p =10-100 and surface mass ejection or suction ratios Φ=-0.23∼0.21 at nondiagonal Schmidt number Sc AB =5, Sc BA =5 and driving force ratios Δω B /Δω A =5. The average diffusion fluxes of a binary solution drop after due consideration of the effect of interaction between diffusion fluxes are affected by Re p , Sc AA and Φ. A new correlation for the average diffusion fluxes of a binary solution drop with surface mass ejection or suction is proposed in terms of multicomponent transfer numbers.

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