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3 cards from this section. Quick, good the night before a test.
Calculate the acceleration due to gravity if wave speed is 5 m/s in a 3 m pond.
Use the formula g = V² / y.
If a flow has a Froude number of 0.5, is the flow subcritical or supercritical?
Recall that Fr < 1 indicates subcritical flow.
What is the Froude number if V = 4 m/s and y = 2 m?
Substitute the given values into the Froude formula.
True or False: A subcritical flow has a Froude number greater than 1.
Recollect the definitions of flow regimes and their Froude numbers.
Calculate the critical depth for a trapezoidal channel with bottom width 6 m, side slope of 1:2, and discharge of 18 m³/s.
Determine the geometry first to find area; then apply discharge and energy relationships.
Discuss the implications of head losses at different slopes and their impact on channel design.
Consider S0 versus Sf and how they affect energy loss over a distance.
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