A rectangular concrete-lined channel is 2m wide with Manning's n 0.012 and a bed slope of 0.0025 m/m. Obtain the depth of flow when the discharge is 9m^3/s.(adsbygoogle = window.adsbygoogle || []).push({});

Q=V.A I have the discharge but how do I calculate the velocity without the area ?? Once I have the velocity I should be able to work it out.

Thanks

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# Homework Help: Open Channel Flow (mannings equation) rectangular section

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