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3 cards from this section. Quick, good the night before a test.
What does dy/dx ≈ 1 indicate in hydraulic jumps?
Consider how depth changes in flowing water.
What is the significance of the Froude number being greater than 1 in open channel flow?
Think about flow velocity.
What is a hydraulic jump?
Think about abrupt versus gradual changes.
True or False? A Froude number less than 1 indicates possible hydraulic jump.
Recall the conditions for a jump to form.
A sluice gate creates a hydraulic jump in a channel at a flow rate of 10 m³/s, where the width of the channel is 2 meters. Calculate y1 and y2 if the depth at section 1 is 0.5m.
You will need to set up the flow continuity equation and derive y2 from y1.
Given the upstream flow has a Froude number of 2.0, estimate the head loss during the hydraulic jump.
Use your notes to find the correct relation for head loss.
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