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The Diameter of Pipe refers to the diameter of the pipe in which the liquid is flowing. Check FAQs
Dpipe=(128μQLpπγfh)14
Dpipe - Diameter of Pipe?μ - Dynamic Viscosity?Q - Discharge in Pipe?Lp - Length of Pipe?γf - Specific Weight of Liquid?h - Head Loss due to Friction?π - Archimedes' constant?

Diameter of Pipe given Head Loss over Length of Pipe with Discharge Example

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With units
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Here is how the Diameter of Pipe given Head Loss over Length of Pipe with Discharge equation looks like with Values.

Here is how the Diameter of Pipe given Head Loss over Length of Pipe with Discharge equation looks like with Units.

Here is how the Diameter of Pipe given Head Loss over Length of Pipe with Discharge equation looks like.

0.1141Edit=(12810.2Edit1Edit0.1Edit3.14169.81Edit2.5Edit)14
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Diameter of Pipe given Head Loss over Length of Pipe with Discharge Solution

Follow our step by step solution on how to calculate Diameter of Pipe given Head Loss over Length of Pipe with Discharge?

FIRST Step Consider the formula
Dpipe=(128μQLpπγfh)14
Next Step Substitute values of Variables
Dpipe=(12810.2P1m³/s0.1mπ9.81kN/m³2.5m)14
Next Step Substitute values of Constants
Dpipe=(12810.2P1m³/s0.1m3.14169.81kN/m³2.5m)14
Next Step Convert Units
Dpipe=(1281.02Pa*s1m³/s0.1m3.14169810N/m³2.5m)14
Next Step Prepare to Evaluate
Dpipe=(1281.0210.13.141698102.5)14
Next Step Evaluate
Dpipe=0.11409403034133m
LAST Step Rounding Answer
Dpipe=0.1141m

Diameter of Pipe given Head Loss over Length of Pipe with Discharge Formula Elements

Variables
Constants
Diameter of Pipe
The Diameter of Pipe refers to the diameter of the pipe in which the liquid is flowing.
Symbol: Dpipe
Measurement: LengthUnit: m
Note: Value should be greater than 0.
Dynamic Viscosity
The Dynamic Viscosity refers to the internal resistance of a fluid to flow when a force is applied.
Symbol: μ
Measurement: Dynamic ViscosityUnit: P
Note: Value should be greater than 0.
Discharge in Pipe
The Discharge in Pipe refers to the volume of fluid (such as water) that passes through the pipe per unit of time.
Symbol: Q
Measurement: Volumetric Flow RateUnit: m³/s
Note: Value can be positive or negative.
Length of Pipe
The Length of Pipe refers to total length from one end to another in which the liquid is flowing.
Symbol: Lp
Measurement: LengthUnit: m
Note: Value can be positive or negative.
Specific Weight of Liquid
The Specific Weight of Liquid refers to the weight per unit volume of that substance.
Symbol: γf
Measurement: Specific WeightUnit: kN/m³
Note: Value should be greater than 0.
Head Loss due to Friction
The Head Loss due to Friction refers to the loss of energy (or pressure) that occurs when a fluid flows through a pipe or duct due to the resistance created by the surface of the pipe.
Symbol: h
Measurement: LengthUnit: m
Note: Value should be greater than 0.
Archimedes' constant
Archimedes' constant is a mathematical constant that represents the ratio of the circumference of a circle to its diameter.
Symbol: π
Value: 3.14159265358979323846264338327950288

Other Formulas to find Diameter of Pipe

​Go Diameter of Pipe given Pressure Drop over Length of Pipe
Dpipe=32μVmeanLpΔP
​Go Diameter of Pipe given Pressure Drop over Length of Pipe with Discharge
Dpipe=(128μQLpΔPπ)14
​Go Diameter of Pipe given Head Loss over Length of Pipe
Dpipe=32μVmeanLpγfh

Other formulas in Hagen Poiseuille Equation category

​Go Pressure drop over length of pipe
ΔP=(32μVmeanLpDpipe2)
​Go Mean Velocity of Flow given Pressure Drop over Length of Pipe
Vmean=ΔP32μLpDpipe2
​Go Length of Pipe given Pressure Drop over Length of Pipe
Lp=ΔPDpipe232μVmean
​Go Dynamic Viscosity given Pressure Drop over Length of Pipe
μ=ΔP(Dpipe2)32LpVmean

How to Evaluate Diameter of Pipe given Head Loss over Length of Pipe with Discharge?

Diameter of Pipe given Head Loss over Length of Pipe with Discharge evaluator uses Diameter of Pipe = ((128*Dynamic Viscosity*Discharge in Pipe*Length of Pipe)/(pi*Specific Weight of Liquid*Head Loss due to Friction))^(1/4) to evaluate the Diameter of Pipe, The Diameter of Pipe given Head Loss over Length of Pipe with Discharge is defined as width of pipe taken for study through which the fluid flows. Diameter of Pipe is denoted by Dpipe symbol.

How to evaluate Diameter of Pipe given Head Loss over Length of Pipe with Discharge using this online evaluator? To use this online evaluator for Diameter of Pipe given Head Loss over Length of Pipe with Discharge, enter Dynamic Viscosity (μ), Discharge in Pipe (Q), Length of Pipe (Lp), Specific Weight of Liquid f) & Head Loss due to Friction (h) and hit the calculate button.

FAQs on Diameter of Pipe given Head Loss over Length of Pipe with Discharge

What is the formula to find Diameter of Pipe given Head Loss over Length of Pipe with Discharge?
The formula of Diameter of Pipe given Head Loss over Length of Pipe with Discharge is expressed as Diameter of Pipe = ((128*Dynamic Viscosity*Discharge in Pipe*Length of Pipe)/(pi*Specific Weight of Liquid*Head Loss due to Friction))^(1/4). Here is an example- 0.101446 = ((128*1.02*1.000001*0.1)/(pi*9810*2.5))^(1/4).
How to calculate Diameter of Pipe given Head Loss over Length of Pipe with Discharge?
With Dynamic Viscosity (μ), Discharge in Pipe (Q), Length of Pipe (Lp), Specific Weight of Liquid f) & Head Loss due to Friction (h) we can find Diameter of Pipe given Head Loss over Length of Pipe with Discharge using the formula - Diameter of Pipe = ((128*Dynamic Viscosity*Discharge in Pipe*Length of Pipe)/(pi*Specific Weight of Liquid*Head Loss due to Friction))^(1/4). This formula also uses Archimedes' constant .
What are the other ways to Calculate Diameter of Pipe?
Here are the different ways to Calculate Diameter of Pipe-
  • Diameter of Pipe=sqrt((32*Dynamic Viscosity*Mean Velocity*Length of Pipe)/Pressure Difference)OpenImg
  • Diameter of Pipe=((128*Dynamic Viscosity*Discharge in Pipe*Length of Pipe)/(Pressure Difference*pi))^(1/4)OpenImg
  • Diameter of Pipe=sqrt((32*Dynamic Viscosity*Mean Velocity*Length of Pipe)/(Specific Weight of Liquid*Head Loss due to Friction))OpenImg
Can the Diameter of Pipe given Head Loss over Length of Pipe with Discharge be negative?
No, the Diameter of Pipe given Head Loss over Length of Pipe with Discharge, measured in Length cannot be negative.
Which unit is used to measure Diameter of Pipe given Head Loss over Length of Pipe with Discharge?
Diameter of Pipe given Head Loss over Length of Pipe with Discharge is usually measured using the Meter[m] for Length. Millimeter[m], Kilometer[m], Decimeter[m] are the few other units in which Diameter of Pipe given Head Loss over Length of Pipe with Discharge can be measured.
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