HCF of three numbers

Return Flow Velocity Calculator

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Flushing or Circulation Processes and Vessel Interactions Free Oscillation Period Open and Closed Basins

✖Vessel Speed referred to as ship speed or boat speed, is the rate at which a vessel travels through the water.ⓘ Vessel Speed [V_s]			+10% -10%
✖Channel Width corresponding to Mean Water Depth is the width of a natural or engineered channel where the average depth of the water is taken into consideration.ⓘ Channel Width corresponding to Mean Water Depth [W]			+10% -10%
✖Water Depth is the vertical distance from the surface of a water body (such as an ocean, sea, or lake) to the bottom.ⓘ Water Depth [D]			+10% -10%
✖Water Surface Drawdown refers to the lowering of the water level in a reservoir, aquifer, or other bodies of water for some period of time, typically for several months.ⓘ Water Surface Drawdown [Δd]			+10% -10%
✖Vessel’s Midsection Wetted Cross-Sectional Area is the area of the vertical plane that cuts through the widest part (beam) of the submerged portion of a vessel's hull.ⓘ Vessel’s Midsection Wetted Cross-Sectional Area [A_m]			+10% -10%

✖Return Flow Velocity is the velocity of water moving back towards the sea, beneath the incoming waves on a beach. It is a significant component of the nearshore hydrodynamics.ⓘ Return Flow Velocity [V_r]

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Return Flow Velocity Solution

STEP 0: Pre-Calculation Summary

Formula Used

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)
V_r = V_s*(((W*D)/(W*(D-Δd)-A_m))-1)
This formula uses 6 Variables

Variables Used

Return Flow Velocity - (Measured in Meter per Second) - Return Flow Velocity is the velocity of water moving back towards the sea, beneath the incoming waves on a beach. It is a significant component of the nearshore hydrodynamics.
Vessel Speed - (Measured in Meter per Second) - Vessel Speed referred to as ship speed or boat speed, is the rate at which a vessel travels through the water.
Channel Width corresponding to Mean Water Depth - (Measured in Meter) - Channel Width corresponding to Mean Water Depth is the width of a natural or engineered channel where the average depth of the water is taken into consideration.
Water Depth - (Measured in Meter) - Water Depth is the vertical distance from the surface of a water body (such as an ocean, sea, or lake) to the bottom.
Water Surface Drawdown - (Measured in Meter) - Water Surface Drawdown refers to the lowering of the water level in a reservoir, aquifer, or other bodies of water for some period of time, typically for several months.
Vessel’s Midsection Wetted Cross-Sectional Area - (Measured in Square Meter) - Vessel’s Midsection Wetted Cross-Sectional Area is the area of the vertical plane that cuts through the widest part (beam) of the submerged portion of a vessel's hull.

STEP 1: Convert Input(s) to Base Unit

Vessel Speed: 100 Meter per Second --> 100 Meter per Second No Conversion Required
Channel Width corresponding to Mean Water Depth: 52 Meter --> 52 Meter No Conversion Required
Water Depth: 12 Meter --> 12 Meter No Conversion Required
Water Surface Drawdown: 5.5 Meter --> 5.5 Meter No Conversion Required
Vessel’s Midsection Wetted Cross-Sectional Area: 31 Square Meter --> 31 Square Meter No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

V_r = V_s*(((W*D)/(W*(D-Δd)-A_m))-1) --> 100*(((52*12)/(52*(12-5.5)-31))-1)

Evaluating ... ...

V_r = 103.257328990228

STEP 3: Convert Result to Output's Unit

103.257328990228 Meter per Second --> No Conversion Required

FINAL ANSWER

103.257328990228 ≈ 103.2573 Meter per Second <-- Return Flow Velocity

(Calculation completed in 00.020 seconds)

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Created by Mithila Muthamma PA

Coorg Institute of Technology (CIT), Coorg

Mithila Muthamma PA has created this Calculator and 2000+ more calculators!

Verified by Chandana P Dev

NSS College of Engineering (NSSCE), Palakkad

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Return Flow Velocity Formula

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What is Froude Law?

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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 formula refers to the speed at which water moves back toward the sea or a central point after being displaced by a wave, tide, or another force between the vessel hull and the channel bottom and sides. This return flow velocity can be calculated for a rectangular channel and vessel cross section. Return Flow Velocity is denoted by V_r symbol.

How to calculate Return Flow Velocity using this online calculator? To use this online calculator for Return Flow Velocity, enter Vessel Speed (V_s), Channel Width corresponding to Mean Water Depth (W), Water Depth (D), Water Surface Drawdown (Δd) & Vessel’s Midsection Wetted Cross-Sectional Area (A_m) 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).

FAQ

What is Return Flow Velocity?

The Return Flow Velocity formula refers to the speed at which water moves back toward the sea or a central point after being displaced by a wave, tide, or another force between the vessel hull and the channel bottom and sides. This return flow velocity can be calculated for a rectangular channel and vessel cross section and is represented as V_r = V_s*(((W*D)/(W*(D-Δd)-A_m))-1) or 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). Vessel Speed referred to as ship speed or boat speed, is the rate at which a vessel travels through the water, Channel Width corresponding to Mean Water Depth is the width of a natural or engineered channel where the average depth of the water is taken into consideration, Water Depth is the vertical distance from the surface of a water body (such as an ocean, sea, or lake) to the bottom, Water Surface Drawdown refers to the lowering of the water level in a reservoir, aquifer, or other bodies of water for some period of time, typically for several months & Vessel’s Midsection Wetted Cross-Sectional Area is the area of the vertical plane that cuts through the widest part (beam) of the submerged portion of a vessel's hull.

How to calculate Return Flow Velocity?

The Return Flow Velocity formula refers to the speed at which water moves back toward the sea or a central point after being displaced by a wave, tide, or another force between the vessel hull and the channel bottom and sides. This return flow velocity can be calculated for a rectangular channel and vessel cross section is calculated using 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 Return Flow Velocity, you need Vessel Speed (V_s), Channel Width corresponding to Mean Water Depth (W), Water Depth (D), Water Surface Drawdown (Δd) & Vessel’s Midsection Wetted Cross-Sectional Area (A_m). With our tool, you need to enter the respective value for Vessel Speed, Channel Width corresponding to Mean Water Depth, Water Depth, Water Surface Drawdown & Vessel’s Midsection Wetted Cross-Sectional Area and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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