Hydraulic Radius Calculator  

Area of Section Flow :
A= R_{h}* P_{w}
Wetted Perimeter :
P_{w} = A/ R_{h}
Where,
R_{h} = Hydraulic Radius,
A = Area of Section Flow,
P_{w} = Wetted Perimeter.
Example:
Calculate the hydraulic radius for the given details.
Area of Section Flow (A) = 25 m^{2}
Wetted Perimeter (P_{w}) = 20 m
Solution:
Apply Formula:
R_{h} = A/P_{w}
R_{h} = 25/20
Hydraulic Radius (R_{h}) = 1.25 m