Question: The depth-averaged velocity Vx for a wide rectangular channel over the flow depth h over a rough boundary is given by: in which ks is

The depth-averaged velocity Vx for a wide rectangular channel over the flow depth h over a rough boundary is given by:

in which ks is approximately 3d50. What is the approximate value of Mannings n coefficient based on the above velocity. Note that based on Stricklers equation, n is approximately 0.06(d50)^1/6.

How will you use the above rough-boundary velocity equation to calculate incipient motion by thresholding using Shields parameter.

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