Abstract
Distribution of boundary shear stress and flow structure near the corner in a rectangular open channel are investigated. Boundary shear stress was estimated from velocity distributions obtained by LDA measurements and by using Preston tube, and also calculated by Naot-Rodi model. Flow structure near the side-wall was visualized by the hydrogen bubble method. Results shows that the secondary flow cells closely relate the distribution of boundary shear stress and coherent structure of wall region on the side-wall.
