Head given Discharge through Small Rectangular Shaped Aperture Weir Calculator

✖Discharge for Small Rectangular Aperture is the rate of flow of a liquid.ⓘ Discharge for Small Rectangular Aperture [Q_srw]			+10% -10%
✖Constant for Small Rectangular Aperture is defined by empirical formula given for Small Rectangular Aperture.ⓘ Constant for Small Rectangular Aperture [K_Flow]			+10% -10%
✖Height of Small Rectangular Aperture is the distance between the lowest and highest points of Small Rectangular Aperture.ⓘ Height of Small Rectangular Aperture [h_ap]			+10% -10%

✖Height of Water above Crest of Weir is defined as the water surface height above crest.ⓘ Head given Discharge through Small Rectangular Shaped Aperture Weir [S_w]

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Head given Discharge through Small Rectangular Shaped Aperture Weir Solution

STEP 0: Pre-Calculation Summary

Formula Used

Height of Water above Crest of Weir = (Discharge for Small Rectangular Aperture/Constant for Small Rectangular Aperture)+(Height of Small Rectangular Aperture/3)
S_w = (Q_srw/K_Flow)+(h_ap/3)
This formula uses 4 Variables

Variables Used

Height of Water above Crest of Weir - (Measured in Meter) - Height of Water above Crest of Weir is defined as the water surface height above crest.
Discharge for Small Rectangular Aperture - (Measured in Cubic Meter per Second) - Discharge for Small Rectangular Aperture is the rate of flow of a liquid.
Constant for Small Rectangular Aperture - Constant for Small Rectangular Aperture is defined by empirical formula given for Small Rectangular Aperture.
Height of Small Rectangular Aperture - (Measured in Meter) - Height of Small Rectangular Aperture is the distance between the lowest and highest points of Small Rectangular Aperture.

STEP 1: Convert Input(s) to Base Unit

Discharge for Small Rectangular Aperture: 1.6 Cubic Meter per Second --> 1.6 Cubic Meter per Second No Conversion Required
Constant for Small Rectangular Aperture: 7.81 --> No Conversion Required
Height of Small Rectangular Aperture: 1.5 Meter --> 1.5 Meter No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

S_w = (Q_srw/K_Flow)+(h_ap/3) --> (1.6/7.81)+(1.5/3)

Evaluating ... ...

S_w = 0.704865556978233

STEP 3: Convert Result to Output's Unit

0.704865556978233 Meter --> No Conversion Required

FINAL ANSWER

0.704865556978233 ≈ 0.704866 Meter <-- Height of Water above Crest of Weir

(Calculation completed in 00.004 seconds)

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Created by M Naveen

National Institute of Technology (NIT), Warangal

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National Institute of Technology Karnataka (NITK), Surathkal

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< Proportional Weir or Sutro Weir Calculators

Height of Aperture given Discharge through Small Rectangular Shaped Aperture Weir

LaTeX Go Height of Small Rectangular Aperture = -((Discharge for Small Rectangular Aperture/Constant for Small Rectangular Aperture)-Height of Water above Crest of Weir)*3

Constant given Discharge through Small Rectangular Shaped Aperture Weir

LaTeX Go Constant for Small Rectangular Aperture = Discharge for Small Rectangular Aperture/(Height of Water above Crest of Weir-(Height of Small Rectangular Aperture/3))

Head given Discharge through Small Rectangular Shaped Aperture Weir

LaTeX Go Height of Water above Crest of Weir = (Discharge for Small Rectangular Aperture/Constant for Small Rectangular Aperture)+(Height of Small Rectangular Aperture/3)

Discharge through Small Rectangular Shaped Aperture Weir

LaTeX Go Discharge for Small Rectangular Aperture = Constant for Small Rectangular Aperture*(Height of Water above Crest of Weir-(Height of Small Rectangular Aperture/3))

Head given Discharge through Small Rectangular Shaped Aperture Weir Formula

LaTeX Go

Height of Water above Crest of Weir = (Discharge for Small Rectangular Aperture/Constant for Small Rectangular Aperture)+(Height of Small Rectangular Aperture/3)
S_w = (Q_srw/K_Flow)+(h_ap/3)

What does discharge mean?

The Discharge Through the Small Rectangular Shaped Aperture weir is a measure of the quantity of any fluid flow over unit time. The quantity may be either volume or mass.

What is a rectangular weir?

A sharp crested, rectangular weir is simply a flat plate obstruction in an open channel flow path, with a straight, level opening to allow water flow over the weir, as shown in the pictures and diagrams in the rest of this article. It is used to meter flow of water over the weir (and through the open channel) by measuring the head of water over the weir crest.
Uses:
* Able to measure higher flows than v-notch weirs.
* Discharge equation more complex than most other weir types.
* Widely used to measure high flow rates in channels suited to weirs.

How to Calculate Head given Discharge through Small Rectangular Shaped Aperture Weir?

Head given Discharge through Small Rectangular Shaped Aperture Weir calculator uses Height of Water above Crest of Weir = (Discharge for Small Rectangular Aperture/Constant for Small Rectangular Aperture)+(Height of Small Rectangular Aperture/3) to calculate the Height of Water above Crest of Weir, The Head given discharge through small rectangular shaped aperture weir is a measurement of height of water flowing in the pipe or weir or notch while discharging of water. Height of Water above Crest of Weir is denoted by S_w symbol.

How to calculate Head given Discharge through Small Rectangular Shaped Aperture Weir using this online calculator? To use this online calculator for Head given Discharge through Small Rectangular Shaped Aperture Weir, enter Discharge for Small Rectangular Aperture (Q_srw), Constant for Small Rectangular Aperture (K_Flow) & Height of Small Rectangular Aperture (h_ap) and hit the calculate button. Here is how the Head given Discharge through Small Rectangular Shaped Aperture Weir calculation can be explained with given input values -> 0.704866 = (1.6/7.81)+(1.5/3).

FAQ

What is Head given Discharge through Small Rectangular Shaped Aperture Weir?

The Head given discharge through small rectangular shaped aperture weir is a measurement of height of water flowing in the pipe or weir or notch while discharging of water and is represented as S_w = (Q_srw/K_Flow)+(h_ap/3) or Height of Water above Crest of Weir = (Discharge for Small Rectangular Aperture/Constant for Small Rectangular Aperture)+(Height of Small Rectangular Aperture/3). Discharge for Small Rectangular Aperture is the rate of flow of a liquid, Constant for Small Rectangular Aperture is defined by empirical formula given for Small Rectangular Aperture & Height of Small Rectangular Aperture is the distance between the lowest and highest points of Small Rectangular Aperture.

How to calculate Head given Discharge through Small Rectangular Shaped Aperture Weir?

The Head given discharge through small rectangular shaped aperture weir is a measurement of height of water flowing in the pipe or weir or notch while discharging of water is calculated using Height of Water above Crest of Weir = (Discharge for Small Rectangular Aperture/Constant for Small Rectangular Aperture)+(Height of Small Rectangular Aperture/3). To calculate Head given Discharge through Small Rectangular Shaped Aperture Weir, you need Discharge for Small Rectangular Aperture (Q_srw), Constant for Small Rectangular Aperture (K_Flow) & Height of Small Rectangular Aperture (h_ap). With our tool, you need to enter the respective value for Discharge for Small Rectangular Aperture, Constant for Small Rectangular Aperture & Height of Small Rectangular Aperture 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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