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Fluid Mechanics
Length of Weir in Notches and Weirs Formulas
The Length of Weir is the of the base of weir through which discharge is taking place. And is denoted by L
w
. Length of Weir is usually measured using the Meter for Length. Note that the value of Length of Weir is always negative.
Formulas to find Length of Weir in Notches and Weirs
f
x
Length of Section for Discharge over Rectangle Notch or Weir
Go
f
x
Length of Crest of Weir or Notch
Go
f
x
Length of Weir or Notch for Velocity of Approach
Go
f
x
Length of Weir or Notch without Velocity of Approach
Go
f
x
Length of Weir Considering Francis's formula
Go
f
x
Length of Weir for Discharge over Broad-Crested Weir
Go
f
x
Length of Weir for Broad-Crested Weir and Head of Liquid at Middle
Go
f
x
Length of Weir for Broad-Crested Weir with Velocity of Approach
Go
Notches and Weirs formulas that make use of Length of Weir
f
x
Head of Liquid at Crest
Go
f
x
Time Required to Empty Reservoir
Go
f
x
Discharge over Rectangle Notch or Weir
Go
f
x
Discharge over Trapezoidal Notch or Weir
Go
f
x
Coefficient of Discharge for Time Required to Empty Reservoir
Go
f
x
Discharge with Velocity of Approach
Go
f
x
Discharge without Velocity of Approach
Go
f
x
Discharge over Rectangle Weir Considering Francis's formula
Go
f
x
Discharge over Rectangle Weir Considering Bazin's formula
Go
f
x
Discharge over Rectangle Weir for Bazin's formula with Velocity of Approach
Go
f
x
Discharge over Rectangle Weir with Two End Contractions
Go
f
x
Discharge over Broad-Crested Weir
Go
f
x
Discharge over Broad-Crested Weir for Head of Liquid at Middle
Go
f
x
Discharge over Broad-Crested Weir with Velocity of Approach
Go
List of variables in Notches and Weirs formulas
f
x
Theoretical Discharge
Go
f
x
Coefficient of Discharge
Go
f
x
Arc Length of Circle
Go
f
x
Area of Weir
Go
f
x
Total Time Taken
Go
f
x
Final Height of Liquid
Go
f
x
Initial Height of Liquid
Go
f
x
Discharge Weir
Go
f
x
Head Due to Velocity of Approach
Go
f
x
Head of Liquid Middle
Go
FAQ
What is the Length of Weir?
The Length of Weir is the of the base of weir through which discharge is taking place. Length of Weir is usually measured using the Meter for Length. Note that the value of Length of Weir is always negative.
Can the Length of Weir be negative?
Yes, the Length of Weir, measured in Length can be negative.
What unit is used to measure Length of Weir?
Length of Weir is usually measured using the Meter[m] for Length. Millimeter[m], Kilometer[m], Decimeter[m] are the few other units in which Length of Weir can be measured.
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