explain the critical depthdc is the depth of flow


Explain the Critical Depth

dc is the depth of flow in an open channel that has the lowest energy. 

In rectangular open channels:  (dc)3 = Q2/g(w)2

In nonrectangular channels: Q2/g= A3/T

     T = surface width, dc by trial and error

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Civil Engineering: explain the critical depthdc is the depth of flow
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