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3 cards from this section. Quick, good the night before a test.
What is the formula for the wetted perimeter in a trapezoidal channel?
Think about the parts of the channel that are in contact with water.
What does the hydraulic radius indicate?
Recall the formula R_h = A / P.
What does Manning's equation help calculate in open channel flow?
Think about what flow characteristics are influenced by channel shape.
True or False: The Froude number indicates whether a flow is laminar.
Remember which numbers indicate flow behavior types.
Design a trapezoidal canal for a specific flow rate. What dimensions will you choose if the desired flow is 20 m³/s, with a slope of 0.001?
Use Manning's equation for velocity to back out area and then choose dimensions.
Calculate the effect on the Froude number if the width of a trapezoidal channel is doubled while maintaining depth and flow.
Remember the effect on A and its impact on flow dynamics.
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