# Hydraulic Radius Equations Formulas Calculator

Open Channel Flow - Fluid Mechanics - Hydraulics - Hydrology

Solving for hydraulic radius of a fully, half or partially filled pipe. This calculator will solve steps 1 thru 7 given flow depth and radius.
 step solve for 1 circular segment height 2 central angle 3 circular segment area 4 arc length 5 flow area 6 wetted perimeter 7 hydraulic radius

flow depth (d)

flow depth (d)
= 0
= 0
meter
= 0
= 0
meter

## Solution:

hydraulic radius of a pipe (h)
= NOT CALCULATED

## Other Units:

Change Equation
Select to solve for a different unknown
 hydraulic radius area of section flow wetted perimeter hydraulic radius of a pipe
mean depth
 mean depth area of section flow top water surface width
Froude number
 Froude number flow velocity acceleration of gravity mean depth

## References - Books:

U.S. Department of the Interior Bureau of Reclamation. Water Resources Research Laboratory: Water Measurement Manual. Washington DC, 2001.
Lindeburg, Michael R. 1992. Engineer In Training Reference Manual. Professional Publication, Inc. 8th Edition.

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By Jimmy Raymond

Contact: aj@ajdesigner.com