Velocity distribution of secondary currents in curved channels

This research concerns steady secondary currents developing in open-channel bends and reviews the theoretical equations of the transverse velocity profile which have been developed by previous researcher. Rozovskii's equation in which fully developed flow was defined at first contains function which is difficult to integrate analytically. Kikkawa et al.'s equation presents the characteristics of the section well. Baek et al's equation reveals the stream-wise variations and the vertical profile of the transverse velocity. These existing equations are generally in good agreement with experimental results. However, equations didn't include exactly effects of flow resistance at water surface and bottom. Furthermore, no-slip condition was not considered.