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The Pipe Radius is the radius of the pipe through which the fluid is flowing. Check FAQs
R=(vavg0.85C(S)0.54)10.63
R - Pipe Radius?vavg - Average Velocity in Pipe Fluid Flow?C - Coefficient of Roughness of Pipe?S - Hydraulic Gradient?

Hydraulic Radius given Mean Velocity of Flow Example

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With units
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Here is how the Hydraulic Radius given Mean Velocity of Flow equation looks like with Values.

Here is how the Hydraulic Radius given Mean Velocity of Flow equation looks like with Units.

Here is how the Hydraulic Radius given Mean Velocity of Flow equation looks like.

200.0003Edit=(4.57Edit0.8531.33Edit(0.25Edit)0.54)10.63
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Hydraulic Radius given Mean Velocity of Flow Solution

Follow our step by step solution on how to calculate Hydraulic Radius given Mean Velocity of Flow?

FIRST Step Consider the formula
R=(vavg0.85C(S)0.54)10.63
Next Step Substitute values of Variables
R=(4.57m/s0.8531.33(0.25)0.54)10.63
Next Step Prepare to Evaluate
R=(4.570.8531.33(0.25)0.54)10.63
Next Step Evaluate
R=0.200000275961464m
Next Step Convert to Output's Unit
R=200.000275961464mm
LAST Step Rounding Answer
R=200.0003mm

Hydraulic Radius given Mean Velocity of Flow Formula Elements

Variables
Pipe Radius
The Pipe Radius is the radius of the pipe through which the fluid is flowing.
Symbol: R
Measurement: LengthUnit: mm
Note: Value should be greater than 0.
Average Velocity in Pipe Fluid Flow
Average Velocity in Pipe Fluid Flow is the total volumetric flow rate divided by the cross-sectional area of the pipe.
Symbol: vavg
Measurement: SpeedUnit: m/s
Note: Value should be greater than 0.
Coefficient of Roughness of Pipe
Coefficient of Roughness of Pipe is a dimensionless parameter used in environmental engineering, particularly in fluid mechanics and hydraulics.
Symbol: C
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
Hydraulic Gradient
Hydraulic Gradient is a specific measurement of liquid pressure above a vertical datum.
Symbol: S
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.

Other Formulas to find Pipe Radius

​Go Radius of Pipe by Hazen Williams Formula given Length of Pipe
R=(6.78Lpvavg1.85((2)1.165)hfC1.85)11.165

Other formulas in Hazen Williams Formula category

​Go Mean Velocity of Flow in Pipe by Hazen Williams Formula
vavg=0.85C((R)0.63)(S)0.54
​Go Head Loss by Hazen Williams Formula
HL'=6.78Lpvavg1.85(Dp1.165)C1.85
​Go Length of Pipe given Head Loss by Hazen Williams Formula
Lp=hf6.78vavg1.85(Dp1.165)C1.85
​Go Velocity of Flow given Head Loss by Hazen Williams Formula
vavg=(hf6.78Lp(Dp1.165)C1.85)11.85

How to Evaluate Hydraulic Radius given Mean Velocity of Flow?

Hydraulic Radius given Mean Velocity of Flow evaluator uses Pipe Radius = (Average Velocity in Pipe Fluid Flow/(0.85*Coefficient of Roughness of Pipe*(Hydraulic Gradient)^(0.54)))^(1/0.63) to evaluate the Pipe Radius, The Hydraulic Radius given Mean Velocity of Flow is defined as the value of hydraulic radius when we have prior information of mean velocity of flow. Pipe Radius is denoted by R symbol.

How to evaluate Hydraulic Radius given Mean Velocity of Flow using this online evaluator? To use this online evaluator for Hydraulic Radius given Mean Velocity of Flow, enter Average Velocity in Pipe Fluid Flow (vavg), Coefficient of Roughness of Pipe (C) & Hydraulic Gradient (S) and hit the calculate button.

FAQs on Hydraulic Radius given Mean Velocity of Flow

What is the formula to find Hydraulic Radius given Mean Velocity of Flow?
The formula of Hydraulic Radius given Mean Velocity of Flow is expressed as Pipe Radius = (Average Velocity in Pipe Fluid Flow/(0.85*Coefficient of Roughness of Pipe*(Hydraulic Gradient)^(0.54)))^(1/0.63). Here is an example- 200000.3 = (4.57/(0.85*31.33*(0.25)^(0.54)))^(1/0.63).
How to calculate Hydraulic Radius given Mean Velocity of Flow?
With Average Velocity in Pipe Fluid Flow (vavg), Coefficient of Roughness of Pipe (C) & Hydraulic Gradient (S) we can find Hydraulic Radius given Mean Velocity of Flow using the formula - Pipe Radius = (Average Velocity in Pipe Fluid Flow/(0.85*Coefficient of Roughness of Pipe*(Hydraulic Gradient)^(0.54)))^(1/0.63).
What are the other ways to Calculate Pipe Radius?
Here are the different ways to Calculate Pipe Radius-
  • Pipe Radius=((6.78*Length of Pipe*Average Velocity in Pipe Fluid Flow^(1.85))/(((2)^(1.165))*Head Loss*Coefficient of Roughness of Pipe^(1.85)))^(1/1.165)OpenImg
Can the Hydraulic Radius given Mean Velocity of Flow be negative?
No, the Hydraulic Radius given Mean Velocity of Flow, measured in Length cannot be negative.
Which unit is used to measure Hydraulic Radius given Mean Velocity of Flow?
Hydraulic Radius given Mean Velocity of Flow is usually measured using the Millimeter[mm] for Length. Meter[mm], Kilometer[mm], Decimeter[mm] are the few other units in which Hydraulic Radius given Mean Velocity of Flow can be measured.
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