8 Feb 2016
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Tutorial 5 – Brief Review
Gradually varied non-uniform flow
Mild slope:
Steep slope:
Where yc is the critical slope of the channel. Note: A channel may be steep for a
discharge and mild for another one.
The variation of water depth in channels can be calculated using:
Where Sf is the friction slope, representing the slope of the total energy line.
We have:
And: