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3 cards from this section. Quick, good the night before a test.
Define open channel flow.
Think about where you see water flowing without any cover.
What is the significance of free surface in open channel flow?
Recall the relationship between pressure and surfaces.
What is the primary force considered in open channel flow?
Consider what pulls fluid downhill.
True or false: In open channel flow, pressure is generally significant at the surface.
Think about the definition of free surface.
A channel has a flow area of 10 m² and a wetted perimeter of 5 m. Calculate the hydraulic radius and classify the flow if the Froude number is 0.7.
Use the hydraulic radius formula and apply the Froude number classification.
Describe the implications of having supercritical flow in a drainage system and how it affects design considerations.
Consider the balance between speed, flow depth, and potential hazards.
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