Flow resistance and velocity distribution in a smooth triangular channel

Abstract This study investigates the flow resistance and velocity distribution in a smooth triangular channel under varying slope conditions laboratory environment. For this purpose, two cross-sectional shaped channels with 30° 45° sidewall slopes were made. In various hydraulic conditions, bed carried out at different discharges channels. The results have been used to test stage-discharge curve, Manning roughness coefficient, n, Darcy-Weisbach friction factor, f, profiles. By increasing discharge, water surface fluctuation increased simultaneously. of profile cross section (TCS) is more than TCS cases. rating curve has less curvature slope. f obtained from higher for 45°, which means that against flowing passing through cross-section. Examination contours shows maximum occurred Practical-sound findings research might be helpful engineers design cost-effective open other similar structures.