Maiarutselvan V
PSG College of Technology (PSGCT), Coimbatore
Maiarutselvan V has created this Calculator and 300+ more calculators!
Shikha Maurya
Indian Institute of Technology (IIT), Bombay
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11 Other formulas that you can solve using the same Inputs

Surface Area of a Rectangular Prism
Surface Area=2*(Length*Width+Length*Height+Width*Height) GO
Perimeter of a rectangle when diagonal and length are given
Perimeter=2*(Length+sqrt((Diagonal)^2-(Length)^2)) GO
Magnetic Flux
Magnetic Flux=Magnetic Field*Length*Breadth*cos(θ) GO
Diagonal of a Rectangle when length and area are given
Diagonal=sqrt(((Area)^2/(Length)^2)+(Length)^2) GO
Area of a Rectangle when length and diagonal are given
Area=Length*(sqrt((Diagonal)^2-(Length)^2)) GO
Diagonal of a Rectangle when length and breadth are given
Diagonal=sqrt(Length^2+Breadth^2) GO
Strain
Strain=Change In Length/Length GO
Surface Tension
Surface Tension=Force/Length GO
Perimeter of a rectangle when length and width are given
Perimeter=2*Length+2*Width GO
Volume of a Rectangular Prism
Volume=Width*Height*Length GO
Area of a Rectangle when length and breadth are given
Area=Length*Breadth GO

11 Other formulas that calculate the same Output

Discharge with velocity of approach
Discharge=(2/3)*coefficient of discharging*Length*sqrt(2*[g])*(((initial height of liquid+final height of liquid)^1.5)-(final height of liquid^1.5)) GO
Discharge over a broad-crested weir for head of liquid at middle
Discharge=coefficient of discharging*Length*sqrt((2*[g])*((head of the liquid*head of liquid middle^2)-(head of liquid middle^3))) GO
Discharge over rectangle weir for Bazin's formula with velocity approach
Discharge=(0.405+(0.003/(head of the liquid+head due to Va)))*Length*sqrt(2*[g])*((head of the liquid+head due to Va)^1.5) GO
Discharge over a broad-crested weir with velocity approach
Discharge=1.705*coefficient of discharging*Length*(((head of the liquid+head due to Va)^1.5)-((head due to Va)^1.5)) GO
Discharge over rectangle weir with two end contractions
Discharge=(2/3)*coefficient of discharging*(Length-(0.2*head of the liquid))*sqrt(2*[g])*(head of the liquid^1.5) GO
Discharge from Manning's equation
Discharge=(1/Manning’s Roughness Coefficient)*Cross sectional area*hydraulic radius^2/3*Bed Slope^1/2 GO
Discharge without velocity of approach
Discharge=(2/3)*coefficient of discharging*Length*sqrt(2*[g])*(initial height of liquid^1.5) GO
Discharge over rectangle weir considering Bazin's formula
Discharge=(0.405+(0.003/head of the liquid))*Length*sqrt(2*[g])*((head of the liquid)^1.5) GO
Discharge over a broad-crested weir
Discharge=1.705*coefficient of discharging*Length*(head of the liquid^1.5) GO
Discharge during retraction
Discharge=Velocity*(Area of piston-Area of piston rod) GO
Discharge during extension
Discharge=Velocity*Area of piston GO

Discharge over rectangle weir considering Francis's formula Formula

Discharge=1.84*Length*(((initial height of liquid+final height of liquid)^1.5)-(final height of liquid^1.5))
Q=1.84*l*(((H 1+H 2)^1.5)-(H 2^1.5))
More formulas
Discharge over rectangle notch or weir GO
Length of section for discharge over rectangle notch or weir GO
Head of liquid over the crest GO
Discharge over a triangular notch or weir GO
Head of liquid above the V-notch GO
Discharge over a trapezoidal notch or weir GO
Time required to empty a reservoir GO
Length of crest of the weir or notch GO
Coefficient of discharge for time required to empty a reservoir GO
Time required to empty a tank with a triangular weir or notch GO
Discharge with velocity of approach GO
Length of weir or notch for velocity of approach GO
Discharge without velocity of approach GO
Length of weir or notch without velocity of approach GO
Length of weir considering Francis's formula GO
Discharge over rectangle weir considering Bazin's formula GO
Length of weir considering Bazin's formula without velocity approach GO
Discharge over rectangle weir for Bazin's formula with velocity approach GO
Length of weir considering Bazin's formula with velocity approach GO
Discharge over rectangle weir with two end contractions GO
Discharge over a broad-crested weir GO
Length of weir for Discharge over a broad-crested weir GO
Discharge over a broad-crested weir for head of liquid at middle GO
Length of weir for broad-crested weir and head of liquid at middle GO
Discharge over a broad-crested weir with velocity approach GO
Length of weir for broad-crested weir with velocity approach GO

How Francis's formula is considered here?

Francis's on the basis of his experiments established that end contraction decreases the effective length of the crest of the weir and hence decreases the discharge.

What is a weir?

A weir or low head dam is a barrier across the width of a river that alters the flow characteristics of water and usually results in a change in the height of the river level. They are also used to control the flow of water for outlets of lakes, ponds, and reservoirs.

How to Calculate Discharge over rectangle weir considering Francis's formula?

Discharge over rectangle weir considering Francis's formula calculator uses Discharge=1.84*Length*(((initial height of liquid+final height of liquid)^1.5)-(final height of liquid^1.5)) to calculate the Discharge, The Discharge over rectangle weir considering Francis's formula is known while considering effective length, the initial height, and final height of the liquid with the velocity of approach condition. Discharge and is denoted by Q symbol.

How to calculate Discharge over rectangle weir considering Francis's formula using this online calculator? To use this online calculator for Discharge over rectangle weir considering Francis's formula, enter Length (l), initial height of liquid (H 1) and final height of liquid (H 2) and hit the calculate button. Here is how the Discharge over rectangle weir considering Francis's formula calculation can be explained with given input values -> 319.1661 = 1.84*3*(((10+10)^1.5)-(10^1.5)).

FAQ

What is Discharge over rectangle weir considering Francis's formula?
The Discharge over rectangle weir considering Francis's formula is known while considering effective length, the initial height, and final height of the liquid with the velocity of approach condition and is represented as Q=1.84*l*(((H 1+H 2)^1.5)-(H 2^1.5)) or Discharge=1.84*Length*(((initial height of liquid+final height of liquid)^1.5)-(final height of liquid^1.5)). Length is the measurement or extent of something from end to end, The initial height of liquid is a variable from the tank emptying through an orifice at its bottom and The final height of liquid is a variable from the tank emptying through an orifice at its bottom.
How to calculate Discharge over rectangle weir considering Francis's formula?
The Discharge over rectangle weir considering Francis's formula is known while considering effective length, the initial height, and final height of the liquid with the velocity of approach condition is calculated using Discharge=1.84*Length*(((initial height of liquid+final height of liquid)^1.5)-(final height of liquid^1.5)). To calculate Discharge over rectangle weir considering Francis's formula, you need Length (l), initial height of liquid (H 1) and final height of liquid (H 2). With our tool, you need to enter the respective value for Length, initial height of liquid and final height of liquid 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 Discharge?
In this formula, Discharge uses Length, initial height of liquid and final height of liquid. We can use 11 other way(s) to calculate the same, which is/are as follows -
  • Discharge=Velocity*Area of piston
  • Discharge=Velocity*(Area of piston-Area of piston rod)
  • Discharge=(2/3)*coefficient of discharging*Length*sqrt(2*[g])*(((initial height of liquid+final height of liquid)^1.5)-(final height of liquid^1.5))
  • Discharge=(2/3)*coefficient of discharging*Length*sqrt(2*[g])*(initial height of liquid^1.5)
  • Discharge=(1/Manning’s Roughness Coefficient)*Cross sectional area*hydraulic radius^2/3*Bed Slope^1/2
  • Discharge=(0.405+(0.003/head of the liquid))*Length*sqrt(2*[g])*((head of the liquid)^1.5)
  • Discharge=(0.405+(0.003/(head of the liquid+head due to Va)))*Length*sqrt(2*[g])*((head of the liquid+head due to Va)^1.5)
  • Discharge=(2/3)*coefficient of discharging*(Length-(0.2*head of the liquid))*sqrt(2*[g])*(head of the liquid^1.5)
  • Discharge=1.705*coefficient of discharging*Length*(head of the liquid^1.5)
  • Discharge=coefficient of discharging*Length*sqrt((2*[g])*((head of the liquid*head of liquid middle^2)-(head of liquid middle^3)))
  • Discharge=1.705*coefficient of discharging*Length*(((head of the liquid+head due to Va)^1.5)-((head due to Va)^1.5))
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