Friction Factor Calculator

✖The Dynamic Viscosity refers to the internal resistance of a fluid to flow when a force is applied.ⓘ Dynamic Viscosity [μ]			+10% -10%
✖The Density of Fluid refers to the mass per unit volume of the fluid, a fundamental property that indicates how much mass is contained in a given volume.ⓘ Density of Fluid [ρ_Fluid]			+10% -10%
✖The Mean Velocity refers to the average speed at which fluid flows through a given cross-sectional area of a pipe or channel.ⓘ Mean Velocity [V_mean]			+10% -10%
✖The Diameter of Pipe refers to the diameter of the pipe in which the liquid is flowing.ⓘ Diameter of Pipe [D_pipe]			+10% -10%

✖The Darcy Friction Factor refers to the dimensionless quantity used in fluid mechanics to describe the frictional losses in pipe flow and open-channel flow.ⓘ Friction Factor [f]

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Friction Factor Solution

STEP 0: Pre-Calculation Summary

Formula Used

Darcy Friction Factor = 64*Dynamic Viscosity/(Density of Fluid*Mean Velocity*Diameter of Pipe)
f = 64*μ/(ρ_Fluid*V_mean*D_pipe)
This formula uses 5 Variables

Variables Used

Darcy Friction Factor - The Darcy Friction Factor refers to the dimensionless quantity used in fluid mechanics to describe the frictional losses in pipe flow and open-channel flow.
Dynamic Viscosity - (Measured in Pascal Second) - The Dynamic Viscosity refers to the internal resistance of a fluid to flow when a force is applied.
Density of Fluid - (Measured in Kilogram per Cubic Meter) - The Density of Fluid refers to the mass per unit volume of the fluid, a fundamental property that indicates how much mass is contained in a given volume.
Mean Velocity - (Measured in Meter per Second) - The Mean Velocity refers to the average speed at which fluid flows through a given cross-sectional area of a pipe or channel.
Diameter of Pipe - (Measured in Meter) - The Diameter of Pipe refers to the diameter of the pipe in which the liquid is flowing.

STEP 1: Convert Input(s) to Base Unit

Dynamic Viscosity: 10.2 Poise --> 1.02 Pascal Second (Check conversion here)
Density of Fluid: 1.225 Kilogram per Cubic Meter --> 1.225 Kilogram per Cubic Meter No Conversion Required
Mean Velocity: 10.1 Meter per Second --> 10.1 Meter per Second No Conversion Required
Diameter of Pipe: 1.01 Meter --> 1.01 Meter No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

f = 64*μ/(ρ_Fluid*V_mean*D_pipe) --> 64*1.02/(1.225*10.1*1.01)

Evaluating ... ...

f = 5.22397764124766

STEP 3: Convert Result to Output's Unit

5.22397764124766 --> No Conversion Required

FINAL ANSWER

5.22397764124766 ≈ 5.223978 <-- Darcy Friction Factor

(Calculation completed in 00.004 seconds)

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National Institute of Technology Karnataka (NITK), Surathkal

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< Friction Factor Calculators

Friction Factor when Head Loss is due to Frictional Resistance

LaTeX Go Darcy Friction Factor = (Head Loss due to Friction*2*[g]*Diameter of Pipe)/(Length of Pipe*Mean Velocity^2)

Friction Factor

LaTeX Go Darcy Friction Factor = 64*Dynamic Viscosity/(Density of Fluid*Mean Velocity*Diameter of Pipe)

Friction Factor given Shear Stress and Density

LaTeX Go Darcy Friction Factor = (8*Shear Stress)/(Mean Velocity*Mean Velocity*Density of Fluid)

Friction Factor given Reynolds Number

LaTeX Go Darcy Friction Factor = 64/Reynolds Number

Friction Factor Formula

LaTeX Go

Darcy Friction Factor = 64*Dynamic Viscosity/(Density of Fluid*Mean Velocity*Diameter of Pipe)
f = 64*μ/(ρ_Fluid*V_mean*D_pipe)

What is Friction Factor ?

The Darcy friction factor formulae are equations that allow the calculation of the Darcy friction factor, a dimensionless quantity used in the Darcy–Weisbach equation, for the description of friction losses in pipe flow as well as open-channel flow.

How to Calculate Friction Factor?

Friction Factor calculator uses Darcy Friction Factor = 64*Dynamic Viscosity/(Density of Fluid*Mean Velocity*Diameter of Pipe) to calculate the Darcy Friction Factor, The Friction Factor formula is defined as the dimensionless quantity used in fluid mechanics to quantify the resistance to flow in a pipe or duct due to friction. Darcy Friction Factor is denoted by f symbol.

How to calculate Friction Factor using this online calculator? To use this online calculator for Friction Factor, enter Dynamic Viscosity (μ), Density of Fluid (ρ_Fluid), Mean Velocity (V_mean) & Diameter of Pipe (D_pipe) and hit the calculate button. Here is how the Friction Factor calculation can be explained with given input values -> 5.223978 = 64*1.02/(1.225*10.1*1.01).

FAQ

What is Friction Factor?

The Friction Factor formula is defined as the dimensionless quantity used in fluid mechanics to quantify the resistance to flow in a pipe or duct due to friction and is represented as f = 64*μ/(ρ_Fluid*V_mean*D_pipe) or Darcy Friction Factor = 64*Dynamic Viscosity/(Density of Fluid*Mean Velocity*Diameter of Pipe). The Dynamic Viscosity refers to the internal resistance of a fluid to flow when a force is applied, The Density of Fluid refers to the mass per unit volume of the fluid, a fundamental property that indicates how much mass is contained in a given volume, The Mean Velocity refers to the average speed at which fluid flows through a given cross-sectional area of a pipe or channel & The Diameter of Pipe refers to the diameter of the pipe in which the liquid is flowing.

How to calculate Friction Factor?

The Friction Factor formula is defined as the dimensionless quantity used in fluid mechanics to quantify the resistance to flow in a pipe or duct due to friction is calculated using Darcy Friction Factor = 64*Dynamic Viscosity/(Density of Fluid*Mean Velocity*Diameter of Pipe). To calculate Friction Factor, you need Dynamic Viscosity (μ), Density of Fluid (ρ_Fluid), Mean Velocity (V_mean) & Diameter of Pipe (D_pipe). With our tool, you need to enter the respective value for Dynamic Viscosity, Density of Fluid, Mean Velocity & Diameter of Pipe 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 Darcy Friction Factor?

In this formula, Darcy Friction Factor uses Dynamic Viscosity, Density of Fluid, Mean Velocity & Diameter of Pipe. We can use 3 other way(s) to calculate the same, which is/are as follows -

Darcy Friction Factor = (Head Loss due to Friction*2*[g]*Diameter of Pipe)/(Length of Pipe*Mean Velocity^2)
Darcy Friction Factor = 64/Reynolds Number
Darcy Friction Factor = (8*Shear Stress)/(Mean Velocity*Mean Velocity*Density of Fluid)

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