How to Calculate Return Flow Velocity?
Return Flow Velocity calculator uses Return Flow Velocity = Vessel Speed*(((Channel Width corresponding to Mean Water Depth*Water Depth)/(Channel Width corresponding to Mean Water Depth*(Water Depth-Water Surface Drawdown)-Vessel’s midsection wetted Cross-Sectional Area))-1) to calculate the Return Flow Velocity, The Return Flow Velocity occurs As a vessel travels in a channel, continuity of flow causes a return flow velocity to develop between the vessel hull and the channel bottom and sides. This return flow velocity Vr can be calculated for a rectangular channel and vessel cross section. Return Flow Velocity is denoted by Vr symbol.
How to calculate Return Flow Velocity using this online calculator? To use this online calculator for Return Flow Velocity, enter Vessel Speed (Vs), Channel Width corresponding to Mean Water Depth (W), Water Depth (D), Water Surface Drawdown (Δd) & Vessel’s midsection wetted Cross-Sectional Area (Am) and hit the calculate button. Here is how the Return Flow Velocity calculation can be explained with given input values -> 103.2573 = 100*(((52*12)/(52*(12-5.5)-31))-1).