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3 cards from this section. Quick, good the night before a test.
What defines the hydraulic radius?
Think about the area and perimeter of the channel.
List two forces acting in open channel flow.
Consider what makes the fluid move.
What is the main difference between open channel flow and pipe flow?
Consider what you're observing visually.
True or False: In open channel flow, the pressure at the free surface is atmospheric.
Think about the nature of free surfaces.
A trapezoidal channel has a bottom width of 5 m, side slopes of 1:1, and a depth of 3 m. Calculate the hydraulic radius for the channel.
Remember to break the channel into simpler shapes for calculating area and perimeter.
Determine the type of flow and Froude number for an open channel flow with a flow velocity of 2 m/s, and a depth of 1.5 m.
Use the formula for the Froude number which involves flow velocity and depth.
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