Hydraulic Radius Calculator (Full Pipe)
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Frequently Asked Questions (FAQ)
What is the hydraulic radius of a full pipe?
- Hydraulic radius is the ratio of the cross-sectional area of the flow to the wetted perimeter. It is a measure of channel flow efficiency.
How do you calculate the hydraulic radius of a pipe?
- To calculate the hydraulic radius (R) of a pipe or a channel use the formula R = A/P, where A is the cross-sectional area of the flow, and P is the wetted perimeter of the channel.
How do you calculate flow in a full pipe?
- To calculate the cross-sectional average velocity flow in open channels use the formula v = (1/n)*R^(2/3)*√S, where n is the Manning coefficient, R is the hydraulic radius, and S is the slope of the pipe.
How do you calculate the wetted perimeter of a pipe?
- To calculate the wetted perimeter of a full pipe use the formula P =2πr, where r is the radius. If the pipe isn't full use the formula P = θr, where θ is the angle at the center of the circle covered by the arc containing water, and r is the radius
