Hydraulic Radius — R derived from Area, wetted perimeter. Channel hydraulics..
Area — Engineering quantity. Influences the result through the governing physical formula; check units. Example: 0.1.
Area is required
wetted perimeter — Engineering quantity. Influences the result through the governing physical formula; check units. Example: 0.101.
wetted perimeter is required
Hydraulic Radius — R derived from Area, wetted perimeter. Channel hydraulics..
Formula
r = area ÷ wettedPerimeter