Loss of Head Due to Friction Calculator

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✖The Coefficient of Friction (μ) is the ratio defining the force that resists the motion of one body in relation to another body in contact with it.ⓘ Coefficient of Friction [μ_friction]			+10% -10%
✖Length of Pipe refers to the distance between two points along the pipe's axis. It is a fundamental parameter used to describe the size and layout of a piping system.ⓘ Length of Pipe [L]			+10% -10%
✖Average Velocity is defined as the mean of all different velocities.ⓘ Average Velocity [v_avg]			+10% -10%
✖Diameter of Pipe is the length of the longest chord of the pipe in which the liquid is flowing.ⓘ Diameter of Pipe [D_pipe]			+10% -10%

✖The Loss of head due to sudden enlargement turbulent eddies are formed at the corner of the enlargement of the pipe section.ⓘ Loss of Head Due to Friction [h_L]

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Loss of Head Due to Friction

Formula

`"h"_{"L"} = (4*"μ"_{"friction"}*"L"*"v"_{"avg"}^2)/("D"_{"pipe"}*2*"[g]")`

Example

`"8.595114m"=(4*"0.4"*"3m"*("6.5m/s")^2)/("1.203m"*2*"[g]")`

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Loss of Head Due to Friction Solution

STEP 0: Pre-Calculation Summary

Formula Used

Loss of Head = (4*Coefficient of Friction*Length of Pipe*Average Velocity^2)/(Diameter of Pipe*2*[g])
h_L = (4*μ_friction*L*v_avg^2)/(D_pipe*2*[g])
This formula uses 1 Constants, 5 Variables

Constants Used

[g] - Gravitational acceleration on Earth Value Taken As 9.80665

Variables Used

Loss of Head - (Measured in Meter) - The Loss of head due to sudden enlargement turbulent eddies are formed at the corner of the enlargement of the pipe section.
Coefficient of Friction - The Coefficient of Friction (μ) is the ratio defining the force that resists the motion of one body in relation to another body in contact with it.
Length of Pipe - (Measured in Meter) - Length of Pipe refers to the distance between two points along the pipe's axis. It is a fundamental parameter used to describe the size and layout of a piping system.
Average Velocity - (Measured in Meter per Second) - Average Velocity is defined as the mean of all different velocities.
Diameter of Pipe - (Measured in Meter) - Diameter of Pipe is the length of the longest chord of the pipe in which the liquid is flowing.

STEP 1: Convert Input(s) to Base Unit

Coefficient of Friction: 0.4 --> No Conversion Required
Length of Pipe: 3 Meter --> 3 Meter No Conversion Required
Average Velocity: 6.5 Meter per Second --> 6.5 Meter per Second No Conversion Required
Diameter of Pipe: 1.203 Meter --> 1.203 Meter No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

h_L = (4*μ_friction*L*v_avg^2)/(D_pipe*2*[g]) --> (4*0.4*3*6.5^2)/(1.203*2*[g])

Evaluating ... ...

h_L = 8.59511421412817

STEP 3: Convert Result to Output's Unit

8.59511421412817 Meter --> No Conversion Required

FINAL ANSWER

8.59511421412817 ≈ 8.595114 Meter <-- Loss of Head

(Calculation completed in 00.004 seconds)

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PSG College of Technology (PSGCT), Coimbatore

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< 13 Flow Analysis Calculators

Viscosity of Fluid or Oil in Rotating Cylinder Method

Go Viscosity of Fluid = (2*(Outer Radius of Cylinder-Inner Radius of Cylinder)*Clearance*Torque Exerted on Wheel)/(pi*Inner Radius of Cylinder^2*Mean Speed in RPM*(4*Initial Height of Liquid*Clearance*Outer Radius of Cylinder+Inner Radius of Cylinder^2*(Outer Radius of Cylinder-Inner Radius of Cylinder)))

Viscosity of Fluid or Oil for Capillary Tube Method

Go Viscosity of Fluid = (pi*Liquid Density*[g]*Difference in Pressure Head*4*Radius^4)/(128*Discharge in Capillary Tube*Length of Pipe)

Loss of Pressure Head for Viscous Flow between Two Parallel Plates

Go Loss of Peizometric Head = (12*Viscosity of Fluid*Velocity of Fluid*Length of Pipe)/(Density of Liquid*[g]*Thickness of Oil Film^2)

Loss of Pressure Head for Viscous Flow through Circular Pipe

Go Loss of Peizometric Head = (32*Viscosity of Fluid*Velocity of Fluid*Length of Pipe)/(Density of Liquid*[g]*Diameter of Pipe^2)

Power Absorbed in Collar Bearing

Go Power Absorbed in Collar Bearing = (2*Viscosity of Fluid*pi^3*Mean Speed in RPM^2*(Outer Radius of Collar^4-Inner Radius of Collar^4))/Thickness of Oil Film

Viscosity of Fluid or Oil for Movement of Piston in Dash-Pot

Go Viscosity of Fluid = (4*Weight of Body*Clearance^3)/(3*pi*Length of Pipe*Piston Diameter^3*Velocity of Fluid)

Mean Free Path given Fluid Viscosity and Density

Go Mean Free Path = (((pi)^0.5)*Viscosity of Fluid)/(Liquid Density*((Thermodynamic Beta*Universal Gas Constant*2)^(0.5)))

Power Absorbed in Overcoming Viscous Resistance in Journal Bearing

Go Power Absorbed = (Viscosity of Fluid*pi^3*Shaft Diameter^3*Mean Speed in RPM^2*Length of Pipe)/Thickness of Oil Film

Viscosity of Fluid or Oil in Falling Sphere Resistance Method

Go Viscosity of Fluid = [g]*(Diameter of Sphere^2)/(18*Velocity of Sphere)*(Density of Sphere-Density of Liquid)

Loss of Head Due to Friction

Go Loss of Head = (4*Coefficient of Friction*Length of Pipe*Average Velocity^2)/(Diameter of Pipe*2*[g])

Difference of Pressure for Viscous Flow between Two Parallel Plates

Go Pressure Difference in Viscous Flow = (12*Viscosity of Fluid*Velocity of Fluid*Length of Pipe)/(Thickness of Oil Film^2)

Difference of Pressure for Viscous or Laminar Flow

Go Pressure Difference in Viscous Flow = (32*Viscosity of Fluid*Average Velocity*Length of Pipe)/(Pipe Diameter^2)

Power Absorbed in Foot-Step Bearing

Go Power Absorbed = (2*Viscosity of Fluid*pi^3*Mean Speed in RPM^2*(Shaft Diameter/2)^4)/(Thickness of Oil Film)

Loss of Head Due to Friction Formula

Loss of Head = (4*Coefficient of Friction*Length of Pipe*Average Velocity^2)/(Diameter of Pipe*2*[g])
h_L = (4*μ_friction*L*v_avg^2)/(D_pipe*2*[g])

What is head loss due to friction in viscous flow?

Head loss is potential energy that is converted to kinetic energy. Head losses are due to the frictional resistance of the piping system (a pipe, valves, fittings, entrance, and exit losses). Unlike the velocity head, the friction head cannot be ignored in system calculations. Values vary as the square of the flow rate.

What is friction in viscous flow?

The amount of friction depends on the fluid viscosity and the velocity gradient (that is, the relative velocity between fluid layers). The velocity gradients are set up by the no-slip condition at the wall.

How to Calculate Loss of Head Due to Friction?

Loss of Head Due to Friction calculator uses Loss of Head = (4*Coefficient of Friction*Length of Pipe*Average Velocity^2)/(Diameter of Pipe*2*[g]) to calculate the Loss of Head, The Loss of head due to friction formula is known while considering the coefficient of friction, average velocity, length, and diameter of the pipe. Loss of Head is denoted by h_L symbol.

How to calculate Loss of Head Due to Friction using this online calculator? To use this online calculator for Loss of Head Due to Friction, enter Coefficient of Friction (μ_friction), Length of Pipe (L), Average Velocity (v_avg) & Diameter of Pipe (D_pipe) and hit the calculate button. Here is how the Loss of Head Due to Friction calculation can be explained with given input values -> 8.616602 = (4*0.4*3*6.5^2)/(1.203*2*[g]).

FAQ

What is Loss of Head Due to Friction?

The Loss of head due to friction formula is known while considering the coefficient of friction, average velocity, length, and diameter of the pipe and is represented as h_L = (4*μ_friction*L*v_avg^2)/(D_pipe*2*[g]) or Loss of Head = (4*Coefficient of Friction*Length of Pipe*Average Velocity^2)/(Diameter of Pipe*2*[g]). The Coefficient of Friction (μ) is the ratio defining the force that resists the motion of one body in relation to another body in contact with it, Length of Pipe refers to the distance between two points along the pipe's axis. It is a fundamental parameter used to describe the size and layout of a piping system, Average Velocity is defined as the mean of all different velocities & Diameter of Pipe is the length of the longest chord of the pipe in which the liquid is flowing.

How to calculate Loss of Head Due to Friction?

The Loss of head due to friction formula is known while considering the coefficient of friction, average velocity, length, and diameter of the pipe is calculated using Loss of Head = (4*Coefficient of Friction*Length of Pipe*Average Velocity^2)/(Diameter of Pipe*2*[g]). To calculate Loss of Head Due to Friction, you need Coefficient of Friction (μ_friction), Length of Pipe (L), Average Velocity (v_avg) & Diameter of Pipe (D_pipe). With our tool, you need to enter the respective value for Coefficient of Friction, Length of Pipe, Average 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.

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