Darcy-Weisbach equation(Head Loss)

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on

Jul 24, 2020, 6:28:07 PM

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on

Jul 21, 2014, 5:41:25 AM

h_{l} = (\frac{L \cdot f}{D}) \cdot (\frac{V^{2}}{2 \cdot g})

$h_l = (( "L" * "f" )/ "D" )*( "V"^2 /(2*g))$

Pipe length

$"Pipe length"$

Pipe diameter

$"Pipe diameter"$

Average velocity

$"Average velocity"$

Friction factor

$"Friction factor"$

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The Darcy-Weisbach equation is named after two of the great hydraulic engineers of the middle 19th century Henry Darcy and Julius Weisbach(1806-1871), but others have also played a major role. The Darcy–Weisbach equation contains a dimensionless friction factor, known as the Darcy friction factor. This is also called the Darcy–Weisbach friction factor or Moody friction factor.
hl = fL/D * V²/2g

where:

h_l is the head loss
L is the pipe length(m)
D is the pipe diameter(m)
V is the average velocity(m/s)
g is the acceleration of gravity(9.81 m/s²)
f is a friction factor.

This equation, Darcy-Weisbach equation(Head Loss), references 1 page

Equations and Data Items

• (g) Acceleration Due to Gravity by KurtHeckman

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Darcy-Weisbach equation(Head Loss)

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