Question: The bed of a horizontal rectangular channel has a small step of height dz as shown in Figure Q 4 . Figure Q 4 The

The bed of a horizontal rectangular channel has a small step of height dz as shown in Figure Q4.
Figure Q4
The upstream flow has depth h and the uniform velocity u.
Derive the expression for the depth change in the surface level dhdz when the flow has become uniform again over the step, and discuss if dh is positive or negative value when upstream flow is supercritical flow (consider linear solution).
The bed of a horizontal rectangular channel has a

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