The area of the water prism in the pipe or channel divided by the wetted perimeter. Thus, for a round conduit flowing full or half full, the hydraulic radius is d/4, Another term sometimes used for this quantity is hydraulic mean depth.
The area of the water prism in the pipe or channel divided by the wetted perimeter. Thus, for a round conduit flowing full or half full, the hydraulic radius is d/4, Another term sometimes used for this quantity is hydraulic mean depth.