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Top Width for Parabola Calculator

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✖Wetted Surface Area of Parabola [length^2] is the total area of outer surface in contact with the surrounding water.ⓘ Wetted Surface Area of Parabola [APara]
+10%
-10%
✖Depth of Flow is the distance from the top or surface of the flow to the bottom of a channel or other waterway or Depth of Flow at the Vertical while measuring Sound Weights.ⓘ Depth of Flow [df]
+10%
-10%
✖Top Width is defined as the width at the top of the section.ⓘ Top Width for Parabola [T]
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Formula
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Top Width for Parabola

Formula
`"T" = 1.5*"A"_{"Para"}/"d"_{"f"}`

Example
`"2.1m"=1.5*"4.62m²"/"3.3m"`

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Top Width for Parabola Solution

STEP 0: Pre-Calculation Summary
Formula Used
Top Width = 1.5*Wetted Surface Area of Parabola/Depth of Flow
T = 1.5*APara/df
This formula uses 3 Variables
Variables Used
Top Width - (Measured in Meter) - Top Width is defined as the width at the top of the section.
Wetted Surface Area of Parabola - (Measured in Square Meter) - Wetted Surface Area of Parabola [length^2] is the total area of outer surface in contact with the surrounding water.
Depth of Flow - (Measured in Meter) - Depth of Flow is the distance from the top or surface of the flow to the bottom of a channel or other waterway or Depth of Flow at the Vertical while measuring Sound Weights.
STEP 1: Convert Input(s) to Base Unit
Wetted Surface Area of Parabola: 4.62 Square Meter --> 4.62 Square Meter No Conversion Required
Depth of Flow: 3.3 Meter --> 3.3 Meter No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
T = 1.5*APara/df --> 1.5*4.62/3.3
Evaluating ... ...
T = 2.1
STEP 3: Convert Result to Output's Unit
2.1 Meter --> No Conversion Required
FINAL ANSWER
2.1 Meter <-- Top Width
(Calculation completed in 00.004 seconds)
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Home » Engineering » Civil » Hydraulics and Waterworks » Flow in Open Channels » Geometrical Properties of Channel Section » Geometrical Properties of Parabolic Channel Section » Top Width for Parabola

Credits

Created by Rithik Agrawal
National Institute of Technology Karnataka (NITK), Surathkal
Rithik Agrawal has created this Calculator and 1300+ more calculators!
Verified by Ishita Goyal
Meerut Institute of Engineering and Technology (MIET), Meerut
Ishita Goyal has verified this Calculator and 2600+ more calculators!

13 Geometrical Properties of Parabolic Channel Section Calculators

Top Width given Hydraulic Radius
Go Top Width = sqrt((8*(Depth of Flow)^2*Hydraulic Radius of Parabola)/(2*Depth of Flow-3*Hydraulic Radius of Parabola))
Hydraulic Radius given Width
Go Hydraulic Radius of Parabola = (2*(Top Width)^2*Depth of Flow)/(3*(Top Width)^2+8*(Depth of Flow)^2)
Wetted Perimeter for Parabola
Go Wetted Perimeter of Parabola = Top Width+(8/3)*Depth of Flow*Depth of Flow/Top Width
Depth of Flow given Section Factor for Parabola
Go Depth of Flow = (Section Factor of Parabola/(0.544331054*Top Width))^(2/3)
Top Widths given Section Factor
Go Top Width = Section Factor of Parabola/(0.544331054*(Depth of Flow^1.5))
Depth of Flow given Wetted Area for Parabola
Go Depth of Flow = Wetted Surface Area of Parabola/((2/3)*Top Width)
Top Width given Wetted Area
Go Top Width = Wetted Surface Area of Parabola/((2/3)*Depth of Flow)
Wetted Area
Go Wetted Surface Area of Parabola = (2/3)*Top Width*Depth of Flow
Depth of Flow given Top Width for Parabola
Go Depth of Flow = 1.5*Wetted Surface Area of Parabola/Top Width
Wetted Area given Top Width
Go Wetted Surface Area of Parabola = Top Width*Depth of Flow/1.5
Top Width for Parabola
Go Top Width = 1.5*Wetted Surface Area of Parabola/Depth of Flow
Hydraulic Depth for Parabola
Go Hydraulic Depth of Parabolic Channel = (2/3)*Depth of Flow
Depth of Flow given Hydraulic Depth for Parabola
Go Depth of Flow = Hydraulic Depth of Parabolic Channel*1.5

Top Width for Parabola Formula

Top Width = 1.5*Wetted Surface Area of Parabola/Depth of Flow
T = 1.5*APara/df

What is Open Channel Flow?

Open-channel flow, a branch of hydraulics and fluid mechanics, is a type of liquid flow within a conduit or in channel with a free surface, known as a channel. The other type of flow within a conduit is pipe flow. These two types of flow are similar in many ways but differ in one important respect: the free surface.

How to Calculate Top Width for Parabola?

Top Width for Parabola calculator uses Top Width = 1.5*Wetted Surface Area of Parabola/Depth of Flow to calculate the Top Width, The Top Width for Parabola is defined as the width of section in the channel at any point in the direction perpendicular to the flow. Top Width is denoted by T symbol.

How to calculate Top Width for Parabola using this online calculator? To use this online calculator for Top Width for Parabola, enter Wetted Surface Area of Parabola (APara) & Depth of Flow (df) and hit the calculate button. Here is how the Top Width for Parabola calculation can be explained with given input values -> 1.33 = 1.5*4.62/3.3.

FAQ

What is Top Width for Parabola?
The Top Width for Parabola is defined as the width of section in the channel at any point in the direction perpendicular to the flow and is represented as T = 1.5*APara/df or Top Width = 1.5*Wetted Surface Area of Parabola/Depth of Flow. Wetted Surface Area of Parabola [length^2] is the total area of outer surface in contact with the surrounding water & Depth of Flow is the distance from the top or surface of the flow to the bottom of a channel or other waterway or Depth of Flow at the Vertical while measuring Sound Weights.
How to calculate Top Width for Parabola?
The Top Width for Parabola is defined as the width of section in the channel at any point in the direction perpendicular to the flow is calculated using Top Width = 1.5*Wetted Surface Area of Parabola/Depth of Flow. To calculate Top Width for Parabola, you need Wetted Surface Area of Parabola (APara) & Depth of Flow (df). With our tool, you need to enter the respective value for Wetted Surface Area of Parabola & Depth of Flow 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 Top Width?
In this formula, Top Width uses Wetted Surface Area of Parabola & Depth of Flow. We can use 3 other way(s) to calculate the same, which is/are as follows -
  • Top Width = Wetted Surface Area of Parabola/((2/3)*Depth of Flow)
  • Top Width = sqrt((8*(Depth of Flow)^2*Hydraulic Radius of Parabola)/(2*Depth of Flow-3*Hydraulic Radius of Parabola))
  • Top Width = Section Factor of Parabola/(0.544331054*(Depth of Flow^1.5))
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