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Top Width is defined as the width at the top of the section. Check FAQs
T=APara(23)df
T - Top Width?APara - Wetted Surface Area of Parabola?df - Depth of Flow?

Top Width given Wetted Area Example

With values
With units
Only example

Here is how the Top Width given Wetted Area equation looks like with Values.

Here is how the Top Width given Wetted Area equation looks like with Units.

Here is how the Top Width given Wetted Area equation looks like.

2.1Edit=4.62Edit(23)3.3Edit
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Top Width given Wetted Area Solution

Follow our step by step solution on how to calculate Top Width given Wetted Area?

FIRST Step Consider the formula
T=APara(23)df
Next Step Substitute values of Variables
T=4.62(23)3.3m
Next Step Prepare to Evaluate
T=4.62(23)3.3
LAST Step Evaluate
T=2.1m

Top Width given Wetted Area Formula Elements

Variables
Top Width
Top Width is defined as the width at the top of the section.
Symbol: T
Measurement: LengthUnit: m
Note: Value should be greater than 0.
Wetted Surface Area of Parabola
Wetted Surface Area of Parabola [length^2] is the total area of outer surface in contact with the surrounding water.
Symbol: APara
Measurement: AreaUnit:
Note: Value should be greater than 0.
Depth of Flow
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.
Symbol: df
Measurement: LengthUnit: m
Note: Value should be greater than 0.

Other Formulas to find Top Width

​Go Top Width given Hydraulic Radius
T=8(df)2RH(Para)2df-3RH(Para)
​Go Top Width for Parabola
T=1.5AParadf
​Go Top Widths given Section Factor
T=ZPara0.544331054(df1.5)

Other formulas in Geometrical Properties of Parabolic Channel Section category

​Go Wetted Area
APara=(23)Tdf
​Go Depth of Flow given Wetted Area for Parabola
df=APara(23)T
​Go Wetted Perimeter for Parabola
PPara=T+(83)dfdfT
​Go Hydraulic Radius given Width
RH(Para)=2(T)2df3(T)2+8(df)2

How to Evaluate Top Width given Wetted Area?

Top Width given Wetted Area evaluator uses Top Width = Wetted Surface Area of Parabola/((2/3)*Depth of Flow) to evaluate the Top Width, The Top Width given Wetted Area is defined as the top length in the channel measured in the perpendicular direction of flow. Top Width is denoted by T symbol.

How to evaluate Top Width given Wetted Area using this online evaluator? To use this online evaluator for Top Width given Wetted Area, enter Wetted Surface Area of Parabola (APara) & Depth of Flow (df) and hit the calculate button.

FAQs on Top Width given Wetted Area

What is the formula to find Top Width given Wetted Area?
The formula of Top Width given Wetted Area is expressed as Top Width = Wetted Surface Area of Parabola/((2/3)*Depth of Flow). Here is an example- 1.33 = 4.62/((2/3)*3.3).
How to calculate Top Width given Wetted Area?
With Wetted Surface Area of Parabola (APara) & Depth of Flow (df) we can find Top Width given Wetted Area using the formula - Top Width = Wetted Surface Area of Parabola/((2/3)*Depth of Flow).
What are the other ways to Calculate Top Width?
Here are the different ways to Calculate Top Width-
  • Top Width=sqrt((8*(Depth of Flow)^2*Hydraulic Radius of Parabola)/(2*Depth of Flow-3*Hydraulic Radius of Parabola))OpenImg
  • Top Width=1.5*Wetted Surface Area of Parabola/Depth of FlowOpenImg
  • Top Width=Section Factor of Parabola/(0.544331054*(Depth of Flow^1.5))OpenImg
Can the Top Width given Wetted Area be negative?
No, the Top Width given Wetted Area, measured in Length cannot be negative.
Which unit is used to measure Top Width given Wetted Area?
Top Width given Wetted Area is usually measured using the Meter[m] for Length. Millimeter[m], Kilometer[m], Decimeter[m] are the few other units in which Top Width given Wetted Area can be measured.
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