Loss of Head at Entrance of Pipe Calculator

✖Head loss at pipe entrance is the head loss of the liquid that occurs at the entrance of the pipe when it flows into the pipe.ⓘ Loss of Head at Entrance of Pipe [h_i]

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Loss of Head at Entrance of Pipe

Formula

`"h"_{"i"} = 0.5*("V"_{"f"}^2)/(2*"[g]")`

Example

`"3.983266m"=0.5*(("12.5m/s")^2)/(2*"[g]")`

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Loss of Head at Entrance of Pipe Solution

STEP 0: Pre-Calculation Summary

Formula Used

Head Loss at Pipe Entrance = 0.5*(Flow Velocity through Pipe^2)/(2*[g])
h_i = 0.5*(V_f^2)/(2*[g])
This formula uses 1 Constants, 2 Variables

Constants Used

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

Variables Used

Head Loss at Pipe Entrance - (Measured in Meter) - Head loss at pipe entrance is the head loss of the liquid that occurs at the entrance of the pipe when it flows into the pipe.
Flow Velocity through Pipe - (Measured in Meter per Second) - Flow Velocity through Pipe is the velocity of the flow of any fluid from the pipe.

STEP 1: Convert Input(s) to Base Unit

Flow Velocity through Pipe: 12.5 Meter per Second --> 12.5 Meter per Second No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

h_i = 0.5*(V_f^2)/(2*[g]) --> 0.5*(12.5^2)/(2*[g])

Evaluating ... ...

h_i = 3.98326645694503

STEP 3: Convert Result to Output's Unit

3.98326645694503 Meter --> No Conversion Required

FINAL ANSWER

3.98326645694503 ≈ 3.983266 Meter <-- Head Loss at Pipe Entrance

(Calculation completed in 00.004 seconds)

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Home » Physics » Fluid Mechanics » Properties of Surfaces and Solids » Closed Channel » Pressure and Flow Head » Loss of Head at Entrance of Pipe

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Created by Maiarutselvan V

PSG College of Technology (PSGCT), Coimbatore

Maiarutselvan V has created this Calculator and 300+ more calculators!

Verified by Shikha Maurya

Indian Institute of Technology (IIT), Bombay

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< 14 Pressure and Flow Head Calculators

Difference in liquid level in three compound pipes with same friction coefficient

Go Difference in Liquid Level = (4*Coefficient of Friction of Pipe/(2*[g]))*((Length of Pipe 1*Velocity at Point 1^2/Diameter of Pipe 1)+(Length of Pipe 2*Velocity at Point 2^2/Diameter of Pipe 2)+(Length of Pipe 3*Velocity at Point 3^2/Diameter of Pipe 3))

Pressure rise for sudden closure of valve in elastic pipe

Go Pressure Rise at Valve = (Flow Velocity through Pipe)*(sqrt(Density of Fluid in Pipe/((1/Bulk Modulus of Liquid Hitting Valve)+(Diameter of Pipe/(Modulus of Elasticity of Pipe*(Thickness of Liquid Carrying Pipe))))))

Loss of Head due to Obstruction in Pipe

Go Loss of Head Due to Obstruction in Pipe = Flow Velocity through Pipe^2/(2*[g])*(Cross Sectional Area of Pipe/(Coefficient of Contraction in Pipe*(Cross Sectional Area of Pipe-Maximum Area of Obstruction))-1)^2

Total head at inlet of pipe for head available at base of nozzle

Go Total Head at Inlet of Pipe = Head Base of Nozzle+(4*Coefficient of Friction of Pipe*Length of Pipe*(Flow Velocity through Pipe^2)/(Diameter of Pipe*2*[g]))

Head available at Base of Nozzle

Go Head Base of Nozzle = Total Head at Inlet of Pipe-(4*Coefficient of Friction of Pipe*Length of Pipe*(Flow Velocity through Pipe^2)/(Diameter of Pipe*2*[g]))

Loss of head in equivalent pipe

Go Loss of Head in Equivalent Pipe = (4*16*(Discharge through Pipe^2)*Coefficient of Friction of Pipe*Length of Pipe)/((pi^2)*2*(Diameter of Equivalent Pipe^5)*[g])

Intensity of pressure wave produced for gradual closure of valves

Go Intensity of Pressure of Wave = (Density of Fluid in Pipe*Length of Pipe*Flow Velocity through Pipe)/Time Required to Close Valve

Loss of Head due to Sudden Contraction

Go Loss of Head Sudden Contraction = Velocity of Fluid at Section 2^2/(2*[g])*(1/Coefficient of Contraction in Pipe-1)^2

Loss of head due to sudden enlargement at any particular section of pipe

Go Loss of Head Sudden Enlargement = ((Velocity of Fluid at Section 1-Velocity of Fluid at Section 2)^2)/(2*[g])

Loss of Head due to Bend in Pipe

Go Head Loss at Pipe Bend = Coefficient of Bend in Pipe*(Flow Velocity through Pipe^2)/(2*[g])

Total head available at inlet of pipe for efficiency of power transmission

Go Total Head at Inlet of Pipe = Head Loss Due to Friction in Pipe/(1-Efficiency for Pipe)

Head Loss due to Friction for Efficiency of Power Transmission

Go Head Loss Due to Friction in Pipe = Total Head at Inlet of Pipe*(1-Efficiency for Pipe)

Loss of Head at Entrance of Pipe

Go Head Loss at Pipe Entrance = 0.5*(Flow Velocity through Pipe^2)/(2*[g])

Loss of head at exit of pipe

Go Head Loss at Pipe Exit = (Flow Velocity through Pipe^2)/(2*[g])

Loss of Head at Entrance of Pipe Formula

Head Loss at Pipe Entrance = 0.5*(Flow Velocity through Pipe^2)/(2*[g])
h_i = 0.5*(V_f^2)/(2*[g])

What is entrance loss?

The entrance loss is the head loss that occurs when a liquid flows from a large tank into a pipe. At the entrance to the pipe, the liquid must accelerate from zero velocity at the liquid surface in the tank to the velocity corresponding to the flow rate through the pipe.

What are the reason for minor head losses in pipe?

Major losses occur due to the friction effect between the moving fluid and the walls of the pipe. The minor losses occur due to any disturbance that might occur to the flow, which is mainly caused by the installed fittings on the pipeline.

How to Calculate Loss of Head at Entrance of Pipe?

Loss of Head at Entrance of Pipe calculator uses Head Loss at Pipe Entrance = 0.5*(Flow Velocity through Pipe^2)/(2*[g]) to calculate the Head Loss at Pipe Entrance, The Loss of Head at Entrance of Pipe formula is known while considering the velocity of liquid flowing in the pipe with a sharp cornered entrance. Head Loss at Pipe Entrance is denoted by h_i symbol.

How to calculate Loss of Head at Entrance of Pipe using this online calculator? To use this online calculator for Loss of Head at Entrance of Pipe, enter Flow Velocity through Pipe (V_f) and hit the calculate button. Here is how the Loss of Head at Entrance of Pipe calculation can be explained with given input values -> 3.983266 = 0.5*(12.5^2)/(2*[g]).

FAQ

What is Loss of Head at Entrance of Pipe?

The Loss of Head at Entrance of Pipe formula is known while considering the velocity of liquid flowing in the pipe with a sharp cornered entrance and is represented as h_i = 0.5*(V_f^2)/(2*[g]) or Head Loss at Pipe Entrance = 0.5*(Flow Velocity through Pipe^2)/(2*[g]). Flow Velocity through Pipe is the velocity of the flow of any fluid from the pipe.

How to calculate Loss of Head at Entrance of Pipe?

The Loss of Head at Entrance of Pipe formula is known while considering the velocity of liquid flowing in the pipe with a sharp cornered entrance is calculated using Head Loss at Pipe Entrance = 0.5*(Flow Velocity through Pipe^2)/(2*[g]). To calculate Loss of Head at Entrance of Pipe, you need Flow Velocity through Pipe (V_f). With our tool, you need to enter the respective value for Flow Velocity through 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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