Question
Download Solution PDFRelationship between Manning's coefficient (η) and Chezy's coefficient (C) is given by : (R is hydraulic radius)
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCalculation:
Chezy's Formula:
\(V = C\sqrt{RS}\) ............................ (i)
Manning's Formula:
\(V = \frac{1}{n}R^{2/3}S^{1/2}\) .......................... (ii)
where C = Chezy's Constant
R = Hydraulic Radius
S = Hydraulic Gradient Line
n = Manning's Roughness Coefficient
From equations (i) and (ii)
\(V = C\sqrt{RS} = \frac{1}{n}R^{2/3}S^{1/2}\)
\(C(R^{1/2}) = \frac{1}{n}(R^{2/3})\)
\(C = \frac{1}{n} (R^{1/6})\)
Last updated on Mar 26, 2025
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