CIV E 530 - OPEN-CHANNEL HYDRAULICS FALL 2008 - MIDTERM 2 - SOLUTION

PROBLEM 1

b = 6 m

S_o = 0.0025

n = 0.015

y = 1.6 m

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Flow area A = b y = 6 × 1.6 = 9.6 m²

Hydraulic radius: R = A/P = 9.6 /(6.0 + 1.6 + 1.6) = 1.043 m

Flow velocity v = (1/n) R^2/3S^1/2 = (1/0.015) (1.043)^2/3(0.0025)^1/2 = 3.428 m/s

Discharge Q = v A = 3.428 × 9.6 = 32.91 m³/s

Problem 5

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