Open Channel Flow

In open channel flow, the Chezy coefficient $C$ and Manning's roughness coefficient $n$ are interrelated via hydraulic radius $R$ as:

Options:

• (A) $C = \frac{1}{n} R^{1/6}$
• (B) $C = \frac{1}{n} R^{2/3}$
• (C) $C = n R^{1/6}$
• (D) $C = \frac{1}{n} R^{1/2}$