CIV E 530 - OPEN-CHANNEL HYDRAULICS SPRING 2006 - MIDTERM 2 - SOLUTION

PROBLEM 1

b = 6 m

S_o = 0.002

n = 0.015

y = 1.2 m

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Flow area A = b × y = 6 × 1.2 = 7.2 m²

Hydraulic radius: R = A/P = 7.2 /(6 + 1.2 + 1.2) = 0.857 m

Flow velocity v = (1/n) R^2/3S^1/2 = (1/0.015) (0.857)^2/3(0.002)^1/2 = 2.69 m/s

Discharge Q = v A = 2.69 × 7.2 = 19.368 m³/s

Problem 2

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