INTERPHASE MASS TRANSFER BETWEEN LIQUID-LIQUID 
COUNTER-CURRENT FLOWS. I. VELOCITY DISTRIBUTION

E. Horvath,a E. Nagy,a
C. Boyadjiev,b and J. Gyenisa

UDC 532.5 

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 made. 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.

aUniversity of Veszprém, Research Institute Chemical Process Engineering, 
8201 Veszprém, P.O.B. 125, Hungary; bBulgarian Academy of Sciences, 
Institute of Chemical Engineering, 1113 Sofia, Acad. G. 
Bontchev Str., Bl. 103, Bulgaria. Published in Inzhenerno-Fizicheskii 
Zhurnal, Vol. 80, No. 4, pp. 80-85, July-August, 2007. Original 
article submitted January 26, 2006; revision submitted June 20, 2006.