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4 cards from this section. Quick, good the night before a test.
What is the formula for wave speed in open channel flow?
Recall the relationship between wave speed, depth, and gravity from class.
What does a Froude number less than 1 indicate?
Consider what happens to moving waves in relation to water flow.
What equation represents the wave speed in open channels?
Remember how wave speed is defined based on depth and gravity.
True or False: A Froude number greater than 1 is associated with subcritical flow.
Reflect on the definition of subcritical vs supercritical flow.
A large water body experiences waves with speed 5 m/s in a depth of 3 m. Calculate gravity, and discuss how this gravity might affect aquatic life compared to Earth.
Consider how gravity influences not just waves but overall ecosystem viability.
For a river 2 m deep flowing with a wave speed of 6 m/s, compute the minimum current speed to maintain downstream flow of waves without upstream movement. Discuss implications for building fisheries.
Use the relationship founded in our wave dynamics discussion to guide your estimation.
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