Length of Crest given Discharge over Cipolletti Weir by Francis, Cipolletti Calculator

✖Discharge by Cipolletti is the rate of flow of a liquid.ⓘ Discharge by Cipolletti [Q_C]			+10% -10%
✖Height of Water above Crest of Weir is defined as the water surface height above crest.ⓘ Height of Water above Crest of Weir [S_w]			+10% -10%

✖Length of Weir Crest is the measurement or extent of Weir Crest from end to end.ⓘ Length of Crest given Discharge over Cipolletti Weir by Francis, Cipolletti [L_w]

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Formula

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Length of Crest given Discharge over Cipolletti Weir by Francis, Cipolletti

Formula

`"L"_{"w"} = "Q"_{"C"}/(1.86*"S"_{"w"}^(3/2))`

Example

`"2.851237m"="15m³/s"/(1.86*("2m")^(3/2))`

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Length of Crest given Discharge over Cipolletti Weir by Francis, Cipolletti Solution

STEP 0: Pre-Calculation Summary

Formula Used

Length of Weir Crest = Discharge by Cipolletti/(1.86*Height of Water above Crest of Weir^(3/2))
L_w = Q_C/(1.86*S_w^(3/2))
This formula uses 3 Variables

Variables Used

Length of Weir Crest - (Measured in Meter) - Length of Weir Crest is the measurement or extent of Weir Crest from end to end.
Discharge by Cipolletti - (Measured in Cubic Meter per Second) - Discharge by Cipolletti is the rate of flow of a liquid.
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.

STEP 1: Convert Input(s) to Base Unit

Discharge by Cipolletti: 15 Cubic Meter per Second --> 15 Cubic Meter per Second No Conversion Required
Height of Water above Crest of Weir: 2 Meter --> 2 Meter No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

L_w = Q_C/(1.86*S_w^(3/2)) --> 15/(1.86*2^(3/2))

Evaluating ... ...

L_w = 2.8512370209135

STEP 3: Convert Result to Output's Unit

2.8512370209135 Meter --> No Conversion Required

FINAL ANSWER

2.8512370209135 ≈ 2.851237 Meter <-- Length of Weir Crest

(Calculation completed in 00.004 seconds)

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Home » Engineering » Civil » Hydraulics and Waterworks » Flow Over Notches and Weirs » Flow Over a Trapizoidal and Triangular Weir or Notch » Flow Over a Trapizoidal Weir or Notch » Length of Crest given Discharge over Cipolletti Weir by Francis, Cipolletti

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National Institute of Technology (NIT), Warangal

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< 12 Flow Over a Trapizoidal Weir or Notch Calculators

Discharge over Trapezoidal Notch if overall Coefficient of Discharge for Trapezoidal notch

Go Discharge by Cipolletti = ((Coefficient of Discharge*sqrt(2*Acceleration due to Gravity)*Height of Water above Crest of Weir^(3/2))*((2/3)*Length of Weir Crest+(8/15)*Height of Water above Crest of Weir*tan(Theta/2)))

Head given Discharge for Cipolletti Weir

Go Height of Water above Crest of Weir = ((3*Discharge by Cipolletti)/(2*Coefficient of Discharge*sqrt(2*Acceleration due to Gravity)*Length of Weir Crest))^(2/3)

Coefficient of Discharge given Discharge for Cipolletti Weir

Go Coefficient of Discharge = (Discharge by Cipolletti*3)/(2*sqrt(2*Acceleration due to Gravity)*Length of Weir Crest*Height of Water above Crest of Weir^(3/2))

Length of Crest given Discharge for Cipolletti Weir

Go Length of Weir Crest = (3*Discharge by Cipolletti)/(2*Coefficient of Discharge*sqrt(2*Acceleration due to Gravity)*Height of Water above Crest of Weir^(3/2))

Discharge for Cipolletti Weir

Go Discharge by Cipolletti = (2/3)*Coefficient of Discharge*sqrt(2*Acceleration due to Gravity)*Length of Weir Crest*Height of Water above Crest of Weir^(3/2)

Additional Head given Discharge for Cipolletti Weir Considering Velocity

Go Velocity Head = (Still Water Head^(3/2)-(Discharge by Cipolletti/(1.86*Length of Weir Crest)))^(2/3)

Head given Discharge for Cipolletti Weir using Velocity

Go Still Water Head = ((Discharge by Cipolletti/(1.86*Length of Weir Crest))+Velocity Head^(3/2))^(2/3)

Length of Crest when Discharge for Cipolletti Weir and Velocity is Considered

Go Length of Weir Crest = Discharge by Cipolletti/(1.86*(Still Water Head^(3/2)-Velocity Head^(3/2)))

Discharge for Cipolletti Weir if Velocity is Considered

Go Discharge by Cipolletti = 1.86*Length of Weir Crest*(Still Water Head^(3/2)-Velocity Head^(3/2))

Head given Discharge over Cipolletti Weir

Go Height of Water above Crest of Weir = (Discharge by Cipolletti/(1.86*Length of Weir Crest))^(2/3)

Length of Crest given Discharge over Cipolletti Weir by Francis, Cipolletti

Go Length of Weir Crest = Discharge by Cipolletti/(1.86*Height of Water above Crest of Weir^(3/2))

Discharge over Cipolletti Weir by Francis Cipolletti

Go Discharge by Cipolletti = 1.86*Length of Weir Crest*Height of Water above Crest of Weir^(3/2)

Length of Crest given Discharge over Cipolletti Weir by Francis, Cipolletti Formula

Length of Weir Crest = Discharge by Cipolletti/(1.86*Height of Water above Crest of Weir^(3/2))
L_w = Q_C/(1.86*S_w^(3/2))

What does head mean?

Hydraulic head is a specific measurement of water pressure or total energy per unit weight above a datum.

What is Cipolletti weir?

A standard Cipoletti weir is trapezoidal in shape. The crest and sides of the weir plate are placed far enough from the bottom and sides of the approach channel to produce full contraction. The sides incline outwardly at a slope of 1 horizontal to 4 vertical.

How to Calculate Length of Crest given Discharge over Cipolletti Weir by Francis, Cipolletti?

Length of Crest given Discharge over Cipolletti Weir by Francis, Cipolletti calculator uses Length of Weir Crest = Discharge by Cipolletti/(1.86*Height of Water above Crest of Weir^(3/2)) to calculate the Length of Weir Crest, Length of crest given discharge over Cipolletti weir by Francis, cipolletti as it applies to area of reclamation can be defined as distance, measured along axis. Length of Weir Crest is denoted by L_w symbol.

How to calculate Length of Crest given Discharge over Cipolletti Weir by Francis, Cipolletti using this online calculator? To use this online calculator for Length of Crest given Discharge over Cipolletti Weir by Francis, Cipolletti, enter Discharge by Cipolletti (Q_C) & Height of Water above Crest of Weir (S_w) and hit the calculate button. Here is how the Length of Crest given Discharge over Cipolletti Weir by Francis, Cipolletti calculation can be explained with given input values -> 2.851237 = 15/(1.86*2^(3/2)).

FAQ

What is Length of Crest given Discharge over Cipolletti Weir by Francis, Cipolletti?

Length of crest given discharge over Cipolletti weir by Francis, cipolletti as it applies to area of reclamation can be defined as distance, measured along axis and is represented as L_w = Q_C/(1.86*S_w^(3/2)) or Length of Weir Crest = Discharge by Cipolletti/(1.86*Height of Water above Crest of Weir^(3/2)). Discharge by Cipolletti is the rate of flow of a liquid & Height of Water above Crest of Weir is defined as the water surface height above crest.

How to calculate Length of Crest given Discharge over Cipolletti Weir by Francis, Cipolletti?

Length of crest given discharge over Cipolletti weir by Francis, cipolletti as it applies to area of reclamation can be defined as distance, measured along axis is calculated using Length of Weir Crest = Discharge by Cipolletti/(1.86*Height of Water above Crest of Weir^(3/2)). To calculate Length of Crest given Discharge over Cipolletti Weir by Francis, Cipolletti, you need Discharge by Cipolletti (Q_C) & Height of Water above Crest of Weir (S_w). With our tool, you need to enter the respective value for Discharge by Cipolletti & Height of Water above Crest of Weir 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 Length of Weir Crest?

In this formula, Length of Weir Crest uses Discharge by Cipolletti & Height of Water above Crest of Weir. We can use 2 other way(s) to calculate the same, which is/are as follows -

Length of Weir Crest = (3*Discharge by Cipolletti)/(2*Coefficient of Discharge*sqrt(2*Acceleration due to Gravity)*Height of Water above Crest of Weir^(3/2))
Length of Weir Crest = Discharge by Cipolletti/(1.86*(Still Water Head^(3/2)-Velocity Head^(3/2)))

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