Surface Velocity Calculator

✖Distance Travelled is the length of the trajectory followed between the initial and final position of the body in motion.ⓘ Distance Travelled [S]			+10% -10%
✖Time Taken to Travel is the total time taken by an object to reach its destination.ⓘ Time Taken to Travel [t]			+10% -10%

✖Surface Velocity of River to get a rough estimate of the runoff.ⓘ Surface Velocity [v_s]

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Formula

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Surface Velocity

Formula

`"v"_{"s"} = "S"/"t"`

Example

`"22m/s"="110m"/"5s"`

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Download Area-Velocity and Ultrasonic Method of Streamflow Measurement Formulas PDF

Surface Velocity Solution

STEP 0: Pre-Calculation Summary

Formula Used

Surface Velocity of River = Distance Travelled/Time Taken to Travel
v_s = S/t
This formula uses 3 Variables

Variables Used

Surface Velocity of River - (Measured in Meter per Second) - Surface Velocity of River to get a rough estimate of the runoff.
Distance Travelled - (Measured in Meter) - Distance Travelled is the length of the trajectory followed between the initial and final position of the body in motion.
Time Taken to Travel - (Measured in Second) - Time Taken to Travel is the total time taken by an object to reach its destination.

STEP 1: Convert Input(s) to Base Unit

Distance Travelled: 110 Meter --> 110 Meter No Conversion Required
Time Taken to Travel: 5 Second --> 5 Second No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

v_s = S/t --> 110/5

Evaluating ... ...

v_s = 22

STEP 3: Convert Result to Output's Unit

22 Meter per Second --> No Conversion Required

FINAL ANSWER

22 Meter per Second <-- Surface Velocity of River

(Calculation completed in 00.004 seconds)

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Credits

Created by Mithila Muthamma PA

Coorg Institute of Technology (CIT), Coorg

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

Verified by Himanshi Sharma

Bhilai Institute of Technology (BIT), Raipur

Himanshi Sharma has verified this Calculator and 800+ more calculators!

< 12 Measurement of Velocity Calculators

Velocity Distribution in Rough Turbulent Flow

Go Average Velocity in Vertical = 5.75*Shear Velocity*log10(30*Height above Bed/Equivalent Sand-Grain Roughness)

Revolutions per Second of Horizontal Axis Meter given Stream Velocity

Go Revolutions per Second of Meter = (Average Velocity in Vertical-Constant b)/Constant a

Stream Velocity at Instrument Location

Go Average Velocity in Vertical = Constant a*Revolutions per Second of Meter+Constant b

Average Velocity in Moderately Deep Streams

Go Average Velocity in Vertical = (Velocity at 0.2 Times Depth of Flow+Velocity at 0.8 Times Depth of Flow)/2

Depth of Flow at Vertical given Sounding Weights

Go Depth of Flow in Vertical = Minimum Weight/(50*Average Velocity in Vertical)

Average Stream Velocity given Minimum Weight

Go Average Velocity in Vertical = Minimum Weight/(50*Depth of Flow in Vertical)

Sounding Weights

Go Minimum Weight = 50*Average Velocity in Vertical*Depth of Flow in Vertical

Average Velocity obtained by using Reduction Factor

Go Average Velocity in Vertical = Reduction Factor*Surface Velocity of River

Surface Velocity given Average of Velocity

Go Surface Velocity of River = Average Velocity in Vertical/Reduction Factor

Time of Distance Travelled given Surface Velocity

Go Time Taken to Travel = Distance Travelled/Surface Velocity of River

Distance Travelled given Surface Velocity

Go Distance Travelled = Surface Velocity of River*Time Taken to Travel

Surface Velocity

Go Surface Velocity of River = Distance Travelled/Time Taken to Travel

Surface Velocity Formula

Surface Velocity of River = Distance Travelled/Time Taken to Travel
v_s = S/t

What is Velocity Measurement by Floats?

The Process involved in the float method of measuring velocity is by observing the time for a floating body to traverse a known length and noting its position in the channel. The floating body may be specially designed surface float, subsurface float, or any selected piece of drift floating with the current.

What is Stream Velocity?

Stream Velocity is important because of its impact on water quality and the living organisms and habitats in the stream. Stream Velocity increases as the volume of the water in the stream increases, determining the kinds of organisms that can live in the stream (some need fast-flowing areas; others need quiet pools).

How to Calculate Surface Velocity?

Surface Velocity calculator uses Surface Velocity of River = Distance Travelled/Time Taken to Travel to calculate the Surface Velocity of River, The Surface Velocity formula is defined as the direction and speed with which the water is moving, measured in feet per second (ft/s) or meters per second (m/s). Surface Velocity of River is denoted by v_s symbol.

How to calculate Surface Velocity using this online calculator? To use this online calculator for Surface Velocity, enter Distance Travelled (S) & Time Taken to Travel (t) and hit the calculate button. Here is how the Surface Velocity calculation can be explained with given input values -> 22 = 110/5.

FAQ

What is Surface Velocity?

The Surface Velocity formula is defined as the direction and speed with which the water is moving, measured in feet per second (ft/s) or meters per second (m/s) and is represented as v_s = S/t or Surface Velocity of River = Distance Travelled/Time Taken to Travel. Distance Travelled is the length of the trajectory followed between the initial and final position of the body in motion & Time Taken to Travel is the total time taken by an object to reach its destination.

How to calculate Surface Velocity?

The Surface Velocity formula is defined as the direction and speed with which the water is moving, measured in feet per second (ft/s) or meters per second (m/s) is calculated using Surface Velocity of River = Distance Travelled/Time Taken to Travel. To calculate Surface Velocity, you need Distance Travelled (S) & Time Taken to Travel (t). With our tool, you need to enter the respective value for Distance Travelled & Time Taken to Travel and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

How many ways are there to calculate Surface Velocity of River?

In this formula, Surface Velocity of River uses Distance Travelled & Time Taken to Travel. We can use 1 other way(s) to calculate the same, which is/are as follows -

Surface Velocity of River = Average Velocity in Vertical/Reduction Factor

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