UDC 532.5 

E. Horvath1), E. Nagy1), Chr. Boyadjiev2), 
and J. Gyenis1)

INTERPHASE MASS TRANSFER BETWEEN LIQUID-LIQUID COUNTER-CURRENT FLOWS. I. VELOCITY DISTRIBUTION
A theoretical analysis of liquid-liquid counter-current flow in laminar boundary layers with a flat interphase based on the similarity variables method has been done. The numerical results for the velocity distribution in both phases are obtained. The dissipation energy in a boundary layer is found and the results corresponding to counter-current and co-current flows are compared. The comparison shows significant differences in the dissipation energy values in the cases of co-current and counter-current flows. 1)University of Veszprém, Research Institute Chemical Process Engineering, 8201 Veszprém, P.O.B. 125, Hungary; 2)Bulgarian Academy of Sciences, Institute of Chemical Engineering, 1113 Sofia, Acad. G. Bontchev Str., Bl. 103, Bulgaria. Original article submitted January 26, 2006; revision submitted March 29, 2006.