Area at Section 2 or at Vena Contracta Solution

STEP 0: Pre-Calculation Summary
Formula Used
Cross Section Area 2 = Coefficient of Contraction*Area of Orifice
Af = Cc*ao
This formula uses 3 Variables
Variables Used
Cross Section Area 2 - (Measured in Square Meter) - Cross Section Area 2 is defined as the area of cross-section at the throat (venturimeter) of the structure.
Coefficient of Contraction - The coefficient of Contraction is ratio between the area of the jet at the vena contract and the area of the orifice.
Area of Orifice - (Measured in Square Meter) - Area of Orifice is the any opening, mouth, hole or vent, as in a pipe, a plate, or a body.
STEP 1: Convert Input(s) to Base Unit
Coefficient of Contraction: 0.611 --> No Conversion Required
Area of Orifice: 4.4 Square Meter --> 4.4 Square Meter No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
Af = Cc*ao --> 0.611*4.4
Evaluating ... ...
Af = 2.6884
STEP 3: Convert Result to Output's Unit
2.6884 Square Meter --> No Conversion Required
FINAL ANSWER
2.6884 Square Meter <-- Cross Section Area 2
(Calculation completed in 00.004 seconds)

Credits

Created by Rithik Agrawal
National Institute of Technology Karnataka (NITK), Surathkal
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Verified by M Naveen
National Institute of Technology (NIT), Warangal
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11 Orifice Meter Calculators

Actual Velocity at Section 2 given Coefficient of Contraction
Go Actual Velocity = Coefficient of Velocity*sqrt(2*[g]*Venturi Head+(Velocity at Point 2*Coefficient of Contraction*Area of Orifice/Cross Section Area 1)^2)
Discharge through Pipe given Coefficient of Discharge
Go Discharge through Orifice = Coefficient of Discharge*Width of Pipe*(Height of Liquid Bottom Edge-Height of Liquid Top Edge)*(sqrt(2*9.81*Difference in Liquid Level))
Theoretical Velocity at Section 1 in Orifice Meter
Go Velocity at Point 1 = sqrt((Velocity at Point 2^2)-(2*[g]*Venturi Head))
Theoretical Velocity at Section 2 in Orifice Meter
Go Velocity at Point 2 = sqrt(2*[g]*Venturi Head+Velocity at Point 1^2)
Coefficient of Discharge given Coefficient of Contraction
Go Coefficient of Discharge = Coefficient of Velocity*Coefficient of Contraction
Coefficient of Contraction given Coefficient of Discharge
Go Coefficient of Contraction = Coefficient of Discharge/Coefficient of Velocity
Coefficient of Velocity given Coefficient of Discharge
Go Coefficient of Velocity = Coefficient of Discharge/Coefficient of Contraction
Coefficient of Contraction
Go Coefficient of Contraction = Coefficient of Discharge/Coefficient of Velocity
Area of Orifice given Area at Section 2 or at Vena Contracta
Go Area of Orifice = Cross Section Area 2/Coefficient of Contraction
Area at Section 2 or at Vena Contracta
Go Cross Section Area 2 = Coefficient of Contraction*Area of Orifice
Actual Velocity given Theoretical Velocity at Section 2
Go Actual Velocity = Coefficient of Velocity*Velocity at Point 2

Area at Section 2 or at Vena Contracta Formula

Cross Section Area 2 = Coefficient of Contraction*Area of Orifice
Af = Cc*ao

What are the Advantages of using an Orifice meter?

Some advantages of using an Orifice meter include its simplicity, cost-effectiveness, and wide range of applications for measuring flow rates of liquids, gases, and steam in various industries.

How to Calculate Area at Section 2 or at Vena Contracta?

Area at Section 2 or at Vena Contracta calculator uses Cross Section Area 2 = Coefficient of Contraction*Area of Orifice to calculate the Cross Section Area 2, The Area at Section 2 or at Vena Contracta is defined as minimum area of flow in the section of lower energy. Cross Section Area 2 is denoted by Af symbol.

How to calculate Area at Section 2 or at Vena Contracta using this online calculator? To use this online calculator for Area at Section 2 or at Vena Contracta, enter Coefficient of Contraction (Cc) & Area of Orifice (ao) and hit the calculate button. Here is how the Area at Section 2 or at Vena Contracta calculation can be explained with given input values -> 2.6884 = 0.611*4.4.

FAQ

What is Area at Section 2 or at Vena Contracta?
The Area at Section 2 or at Vena Contracta is defined as minimum area of flow in the section of lower energy and is represented as Af = Cc*ao or Cross Section Area 2 = Coefficient of Contraction*Area of Orifice. The coefficient of Contraction is ratio between the area of the jet at the vena contract and the area of the orifice & Area of Orifice is the any opening, mouth, hole or vent, as in a pipe, a plate, or a body.
How to calculate Area at Section 2 or at Vena Contracta?
The Area at Section 2 or at Vena Contracta is defined as minimum area of flow in the section of lower energy is calculated using Cross Section Area 2 = Coefficient of Contraction*Area of Orifice. To calculate Area at Section 2 or at Vena Contracta, you need Coefficient of Contraction (Cc) & Area of Orifice (ao). With our tool, you need to enter the respective value for Coefficient of Contraction & Area of Orifice 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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