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The Diameter of Section refers to the length of the segment that passes through the center of the circle and touches two points on the edge of the circle. Check FAQs
dsection=Tcirsin(θAngle2)
dsection - Diameter of Section?Tcir - Top Width of Circular Channel?θAngle - Subtended Angle in Radians?

Diameter of Section given Top Width Example

With values
With units
Only example

Here is how the Diameter of Section given Top Width equation looks like with Values.

Here is how the Diameter of Section given Top Width equation looks like with Units.

Here is how the Diameter of Section given Top Width equation looks like.

5.0003Edit=0.137Editsin(3.14Edit2)
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Diameter of Section given Top Width Solution

Follow our step by step solution on how to calculate Diameter of Section given Top Width?

FIRST Step Consider the formula
dsection=Tcirsin(θAngle2)
Next Step Substitute values of Variables
dsection=0.137msin(3.14°2)
Next Step Convert Units
dsection=0.137msin(0.0548rad2)
Next Step Prepare to Evaluate
dsection=0.137sin(0.05482)
Next Step Evaluate
dsection=5.00032113600201m
LAST Step Rounding Answer
dsection=5.0003m

Diameter of Section given Top Width Formula Elements

Variables
Functions
Diameter of Section
The Diameter of Section refers to the length of the segment that passes through the center of the circle and touches two points on the edge of the circle.
Symbol: dsection
Measurement: LengthUnit: m
Note: Value should be greater than 0.
Top Width of Circular Channel
Top Width of Circular Channel is defined as width at top of section.
Symbol: Tcir
Measurement: LengthUnit: m
Note: Value should be greater than 0.
Subtended Angle in Radians
Subtended Angle in Radians is the angle made by something from a given viewpoint.
Symbol: θAngle
Measurement: AngleUnit: °
Note: Value should be greater than 0.
sin
Sine is a trigonometric function that describes the ratio of the length of the opposite side of a right triangle to the length of the hypotenuse.
Syntax: sin(Angle)

Other Formulas to find Diameter of Section

​Go Diameter of Section given Wetted Area
dsection=(180π)(θAngle)-(8Aw(cir))sin(θAngle)
​Go Diameter of Section given Wetted Perimeter
dsection=p0.5θAngle(180π)
​Go Diameter of Section given Hydraulic Radius for Channel
dsection=Rh(cir)0.25(1-(sin(θAngle)(180π)θAngle))
​Go Diameter of Section given Hydraulic Depth
dsection=Dcir0.125((θAngle(180π))-sin(θAngle)sin(θAngle2))

Other formulas in Geometrical Properties of Circular Channel Section category

​Go Wetted Area for Circle
Aw(cir)=(18)((180π)θAngle-sin(θAngle)(dsection2))
​Go Angle of Sector given Wetted Perimeter
θAngle=p0.5dsection(π180)
​Go Wetted Perimeter for circle
p=0.5θAngledsection180π
​Go Hydraulic Radius given Angle
Rh(cir)=0.25dsection(1-sin(θAngle)180πθAngle)

How to Evaluate Diameter of Section given Top Width?

Diameter of Section given Top Width evaluator uses Diameter of Section = Top Width of Circular Channel/sin(Subtended Angle in Radians/2) to evaluate the Diameter of Section, Diameter of Section given Top Width formula is defined as the maximum amount of water that can be stored in section. Diameter of Section is denoted by dsection symbol.

How to evaluate Diameter of Section given Top Width using this online evaluator? To use this online evaluator for Diameter of Section given Top Width, enter Top Width of Circular Channel (Tcir) & Subtended Angle in Radians Angle) and hit the calculate button.

FAQs on Diameter of Section given Top Width

What is the formula to find Diameter of Section given Top Width?
The formula of Diameter of Section given Top Width is expressed as Diameter of Section = Top Width of Circular Channel/sin(Subtended Angle in Radians/2). Here is an example- 5.000321 = 0.137/sin(0.0548033385126116/2).
How to calculate Diameter of Section given Top Width?
With Top Width of Circular Channel (Tcir) & Subtended Angle in Radians Angle) we can find Diameter of Section given Top Width using the formula - Diameter of Section = Top Width of Circular Channel/sin(Subtended Angle in Radians/2). This formula also uses Sine function(s).
What are the other ways to Calculate Diameter of Section?
Here are the different ways to Calculate Diameter of Section-
  • Diameter of Section=sqrt(((180/pi)*(Subtended Angle in Radians)-(8*Wetted Surface Area of Circular Channel))/sin(Subtended Angle in Radians))OpenImg
  • Diameter of Section=Wetted Perimeter of Channel/(0.5*Subtended Angle in Radians*(180/pi))OpenImg
  • Diameter of Section=Hydraulic Radius of Circular Channel/(0.25*(1-(sin(Subtended Angle in Radians)/((180/pi)*Subtended Angle in Radians))))OpenImg
Can the Diameter of Section given Top Width be negative?
No, the Diameter of Section given Top Width, measured in Length cannot be negative.
Which unit is used to measure Diameter of Section given Top Width?
Diameter of Section given Top Width is usually measured using the Meter[m] for Length. Millimeter[m], Kilometer[m], Decimeter[m] are the few other units in which Diameter of Section given Top Width can be measured.
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