Question

6. A circular corrugated metal water channel has a slope of 1:800 and a diameter of 6 ft (a) Estimate the normal discharge, in gal/min, when the water depth is 4 ft. (b) For this condition, calculate the average wall shear stress. P 1.94 Slug/ft The geometry of this circular partly full channel is given in the figure shown The angle θ 109.5°-1.911 radians. The area and hydraulic radius are given as: A R2 (0-(Sin 20)/2) Rh (R/2) (1- (Sin 20)/20) 1ft o02 fo cougated eca 0- 109.5 Maming constant 3 ft 3 ft

Answer 1

please give rate