FormulaDen.com

Physics Chemistry Math Chemical Engineering Civil Electrical Electronics Electronics and Instrumentation Materials Science Mechanical Production Engineering Financial Health

Head Loss due to Friction by Darcy Weisbach Equation Formula

GoHead Loss due to Friction given Internal Radius of Pipe Formula

Fx Copy

LaTeX Copy

Head Loss is a measure of the reduction in the total head (sum of elevation head, velocity head and pressure head) of the fluid as it moves through a fluid system. Check FAQs

h f = \frac{4 \cdot f \cdot L p \cdot {(v avg)}^{2}}{2 \cdot [g] \cdot D p}

h_f - Head Loss?f - Darcy's Coefficient of Friction?L_p - Length of Pipe?v_avg - Average Velocity in Pipe Fluid Flow?D_p - Diameter of Pipe?[g] - Gravitational acceleration on Earth?

Head Loss due to Friction by Darcy Weisbach Equation Example

With values

With units

Only example

Here is how the Head Loss due to Friction by Darcy Weisbach Equation equation looks like with Values.

Here is how the Head Loss due to Friction by Darcy Weisbach Equation equation looks like with Units.

Here is how the Head Loss due to Friction by Darcy Weisbach Equation equation looks like.

1.1979 = \frac{4 \cdot 0.045 \cdot 2.5 \cdot {(4.57)}^{2}}{2 \cdot 9.8066 \cdot 0.4}

1.1979m = \frac{4 \cdot 0.045 \cdot 2.5m \cdot {(4.57m/s)}^{2}}{2 \cdot 9.8066m/s² \cdot 0.4m}

1.1979 = \frac{4 \cdot 0.045 \cdot 2.5 \cdot {(4.57)}^{2}}{2 \cdot 9.8066 \cdot 0.4}

Tip: Use pencil ( Pencil

) icon above to edit Input Values and Units.

Calculate

Recalculate

Solution

Copy

Reset

You are here -

Home » Category

Engineering » Category

Civil » Category

Environmental Engineering » fx Head Loss due to Friction by Darcy Weisbach Equation

Head Loss due to Friction by Darcy Weisbach Equation Solution

Follow our step by step solution on how to calculate Head Loss due to Friction by Darcy Weisbach Equation?

FIRST Step Consider the formula

h f = \frac{4 \cdot f \cdot L p \cdot {(v avg)}^{2}}{2 \cdot [g] \cdot D p}

Next Step Substitute values of Variables

∴

h f = \frac{4 \cdot 0.045 \cdot 2.5m \cdot {(4.57m/s)}^{2}}{2 \cdot [g] \cdot 0.4m}

Next Step Substitute values of Constants

∴

h f = \frac{4 \cdot 0.045 \cdot 2.5m \cdot {(4.57m/s)}^{2}}{2 \cdot 9.8066m/s² \cdot 0.4m}

Next Step Prepare to Evaluate

∴

h f = \frac{4 \cdot 0.045 \cdot 2.5 \cdot {(4.57)}^{2}}{2 \cdot 9.8066 \cdot 0.4}

Next Step Evaluate

∴

h f = 1.19793775142378m

LAST Step Rounding Answer

∴

h f = 1.1979m

Head Loss due to Friction by Darcy Weisbach Equation Formula Elements

Variables

Constants

Head Loss

Head Loss is a measure of the reduction in the total head (sum of elevation head, velocity head and pressure head) of the fluid as it moves through a fluid system.

Symbol: h_f

Measurement: LengthUnit: m

Note: Value should be greater than 0.

Formulas to find Head Loss

Darcy's Coefficient of Friction

Darcy's Coefficient of Friction refers to a parameter used to characterize the flow of water or other fluids through porous media, such as soil or rock.

Symbol: f

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Darcy's Coefficient of Friction

Length of Pipe

Length of Pipe describes the length of the pipe in which the liquid is flowing.

Symbol: L_p

Measurement: LengthUnit: m

Note: Value should be greater than 0.

Formulas to find Length of Pipe

Average Velocity in Pipe Fluid Flow

Average Velocity in Pipe Fluid Flow is the total volumetric flow rate divided by the cross-sectional area of the pipe.

Symbol: v_avg

Measurement: SpeedUnit: m/s

Note: Value should be greater than 0.

Formulas to find Average Velocity in Pipe Fluid Flow

Diameter of Pipe

Diameter of Pipe is the diameter of the pipe in which the liquid is flowing.

Symbol: D_p

Measurement: LengthUnit: m

Note: Value should be greater than 0.

Formulas to find Diameter of Pipe

Gravitational acceleration on Earth

Gravitational acceleration on Earth means that the velocity of an object in free fall will increase by 9.8 m/s2 every second.

Symbol: [g]

Value: 9.80665 m/s²

Other Formulas to find Head Loss

Go Head Loss due to Friction given Internal Radius of Pipe

h f = \frac{f \cdot L p \cdot {(v avg)}^{2}}{[g] \cdot R}

Other formulas in Darcy's Weisbach Equation category

Go Darcy's Coefficient of Friction given Head Loss

f = \frac{h f \cdot 2 \cdot [g] \cdot D p}{4 \cdot L p \cdot {(v avg)}^{2}}

Go Length of Pipe given Head Loss due to Friction

L p = \frac{h f \cdot 2 \cdot [g] \cdot D p}{4 \cdot f \cdot {(v avg)}^{2}}

Go Average Velocity of Flow given Head Loss

v avg = \sqrt{\frac{h f \cdot 2 \cdot [g] \cdot D p}{4 \cdot f \cdot L p}}

Go Internal Diameter of Pipe given Head Loss

D p = \frac{4 \cdot f \cdot L p \cdot {(v avg)}^{2}}{2 \cdot [g] \cdot h f}

How to Evaluate Head Loss due to Friction by Darcy Weisbach Equation?

Head Loss due to Friction by Darcy Weisbach Equation evaluator uses Head Loss = (4*Darcy's Coefficient of Friction*Length of Pipe*(Average Velocity in Pipe Fluid Flow)^2)/(2*[g]*Diameter of Pipe) to evaluate the Head Loss, The Head Loss due to Friction by Darcy Weisbach Equation is defined as the value of head loss due to friction in pipes, when we have prior information of other parameters used. Head Loss is denoted by h_f symbol.

How to evaluate Head Loss due to Friction by Darcy Weisbach Equation using this online evaluator? To use this online evaluator for Head Loss due to Friction by Darcy Weisbach Equation, enter Darcy's Coefficient of Friction (f), Length of Pipe (L_p), Average Velocity in Pipe Fluid Flow (v_avg) & Diameter of Pipe (D_p) and hit the calculate button.

FAQs on Head Loss due to Friction by Darcy Weisbach Equation

What is the formula to find Head Loss due to Friction by Darcy Weisbach Equation?

The formula of Head Loss due to Friction by Darcy Weisbach Equation is expressed as Head Loss = (4*Darcy's Coefficient of Friction*Length of Pipe*(Average Velocity in Pipe Fluid Flow)^2)/(2*[g]*Diameter of Pipe). Here is an example- 1.197938 = (4*0.045*2.5*(4.57)^2)/(2*[g]*0.4).

How to calculate Head Loss due to Friction by Darcy Weisbach Equation?

With Darcy's Coefficient of Friction (f), Length of Pipe (L_p), Average Velocity in Pipe Fluid Flow (v_avg) & Diameter of Pipe (D_p) we can find Head Loss due to Friction by Darcy Weisbach Equation using the formula - Head Loss = (4*Darcy's Coefficient of Friction*Length of Pipe*(Average Velocity in Pipe Fluid Flow)^2)/(2*[g]*Diameter of Pipe). This formula also uses Gravitational acceleration on Earth constant(s).

What are the other ways to Calculate Head Loss?

Here are the different ways to Calculate Head Loss-

Head Loss=(Darcy's Coefficient of Friction*Length of Pipe*(Average Velocity in Pipe Fluid Flow)^2)/([g]*Pipe Radius)

Can the Head Loss due to Friction by Darcy Weisbach Equation be negative?

No, the Head Loss due to Friction by Darcy Weisbach Equation, measured in Length cannot be negative.

Which unit is used to measure Head Loss due to Friction by Darcy Weisbach Equation?

Head Loss due to Friction by Darcy Weisbach Equation is usually measured using the Meter[m] for Length. Millimeter[m], Kilometer[m], Decimeter[m] are the few other units in which Head Loss due to Friction by Darcy Weisbach Equation can be measured.

Let Others Know

✖

Facebook

Twitter

Copied!

: Value
: Unit

Head Loss due to Friction by Darcy Weisbach Equation Formula

​GoHead Loss due to Friction given Internal Radius of Pipe Formula

Head Loss due to Friction by Darcy Weisbach Equation Example

Head Loss due to Friction by Darcy Weisbach Equation Solution

Head Loss due to Friction by Darcy Weisbach Equation Formula Elements

Other Formulas to find Head Loss

Other formulas in Darcy's Weisbach Equation category

How to Evaluate Head Loss due to Friction by Darcy Weisbach Equation?

FAQs on Head Loss due to Friction by Darcy Weisbach Equation

Variable Name

GoHead Loss due to Friction given Internal Radius of Pipe Formula