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Calculate Hydraulic Radius Of Pipe . How to calculate hydraulic radius & wetted perimeter? P is the wetted perimeter. Hydraulic Radius of a Triangular Channel from www.piping-designer.com Hydraulic radius of a section catering for flow of water, its velocity and discharge, is function of the shape of a pipe, channel, or river in which the flow is occurring. R h is the hydraulic radius. Rh = a/p = y2z/{2[y2(1 + z2)]1/2} circular cross section.

Bend Radius Calculator Cable . Bend radius = cable outer diameter x cable multiplier. The cable bending radius is a measurement of the smallest radius a cable can be bent around without damaging the cable. Min Outside Radius 50.6 from www.woodhead.com Bending radius = (r/h of single layer dynamic flex) x application thickness. Knowing the life cycle bending times of your flex pcb is crucial to your design. When not under tension (after installation), the minimum recommended long term bend radius is 10 times the cable diameter.