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Chezy Constant for Rough Channels Formula

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The Chezy's constant is a dimensionless quantity that can be calculated by three formulas, namely: Bazin Formula. Ganguillet -Kutter Formula. Manning's Formula. Check FAQs

C = 18 \cdot \log 10 (12.2 \cdot \frac{R H}{R a})

C - Chezy's Constant?R_H - Hydraulic Radius of Channel?R_a - Roughness Value?

Chezy Constant for Rough Channels Example

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Here is how the Chezy Constant for Rough Channels equation looks like with Values.

Here is how the Chezy Constant for Rough Channels equation looks like with Units.

Here is how the Chezy Constant for Rough Channels equation looks like.

131.2286 = 18 \cdot \log 10 (12.2 \cdot \frac{1.6}{0.001})

131.2286 = 18 \cdot \log 10 (12.2 \cdot \frac{1.6m}{0.001mm})

131.2286 = 18 \cdot \log 10 (12.2 \cdot \frac{1.6}{0.001})

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Chezy Constant for Rough Channels Solution

Follow our step by step solution on how to calculate Chezy Constant for Rough Channels?

FIRST Step Consider the formula

C = 18 \cdot \log 10 (12.2 \cdot \frac{R H}{R a})

Next Step Substitute values of Variables

∴

C = 18 \cdot \log 10 (12.2 \cdot \frac{1.6m}{0.001mm})

Next Step Convert Units

∴

C = 18 \cdot \log 10 (12.2 \cdot \frac{1.6m}{1E-6m})

Next Step Prepare to Evaluate

∴

C = 18 \cdot \log 10 (12.2 \cdot \frac{1.6}{1E-6})

Next Step Evaluate

∴

C = 131.228636639952

LAST Step Rounding Answer

∴

C = 131.2286

Chezy Constant for Rough Channels Formula Elements

Variables

Functions

Chezy's Constant

The Chezy's constant is a dimensionless quantity that can be calculated by three formulas, namely: Bazin Formula. Ganguillet -Kutter Formula. Manning's Formula.

Symbol: C

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Chezy's Constant

Hydraulic Radius of Channel

Hydraulic Radius of Channel is the ratio of the cross-sectional area of a channel or pipe in which a fluid is flowing to the wet perimeter of the conduit.

Symbol: R_H

Measurement: LengthUnit: m

Note: Value should be greater than 0.

Formulas to find Hydraulic Radius of Channel

Roughness Value

Roughness Value is the arithmetic average of the absolute values of the roughness profile ordinates.

Symbol: R_a

Measurement: LengthUnit: mm

Note: Value should be greater than 0.

Formulas to find Roughness Value

log10

The common logarithm, also known as the base-10 logarithm or the decimal logarithm, is a mathematical function that is the inverse of the exponential function.

Syntax: log10(Number)

Other formulas in Uniform Turbulent Flow category

Go Mean Velocity of flow in Smooth Channels

V avg(Tur) = V shear \cdot (3.25 + 5.75 \cdot \log 10 (R H \cdot \frac{V shear}{ν Tur}))

Go Mean Velocity of flow in Rough Channels

V avg(Tur) = V shear \cdot (6.25 + 5.75 \cdot \log 10 (\frac{R H}{R a}))

Go Hydraulic Radius given Mean Velocity of flow in Smooth Channels

R H = (10^{\frac{(\frac{V avg(Tur)}{V shear}) - 3.25}{5.75}}) \cdot (\frac{ν Tur}{V shear})

Go Kinematic Viscosity given Mean Velocity of flow in Smooth Channels

ν Tur = \frac{R H \cdot V shear}{10^{\frac{(\frac{V avg(Tur)}{V shear}) - 3.25}{5.75}}}

How to Evaluate Chezy Constant for Rough Channels?

Chezy Constant for Rough Channels evaluator uses Chezy's Constant = 18*log10(12.2*Hydraulic Radius of Channel/Roughness Value) to evaluate the Chezy's Constant, The Chezy Constant for Rough Channels formula is defined as the constant depending on the flow properties and materials. Chezy's Constant is denoted by C symbol.

How to evaluate Chezy Constant for Rough Channels using this online evaluator? To use this online evaluator for Chezy Constant for Rough Channels, enter Hydraulic Radius of Channel (R_H) & Roughness Value (R_a) and hit the calculate button.

FAQs on Chezy Constant for Rough Channels

What is the formula to find Chezy Constant for Rough Channels?

The formula of Chezy Constant for Rough Channels is expressed as Chezy's Constant = 18*log10(12.2*Hydraulic Radius of Channel/Roughness Value). Here is an example- 131.2286 = 18*log10(12.2*1.6/1E-06).

How to calculate Chezy Constant for Rough Channels?

With Hydraulic Radius of Channel (R_H) & Roughness Value (R_a) we can find Chezy Constant for Rough Channels using the formula - Chezy's Constant = 18*log10(12.2*Hydraulic Radius of Channel/Roughness Value). This formula also uses Common Logarithm (log10) function(s).

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Chezy Constant for Rough Channels Formula

Chezy Constant for Rough Channels Example

Chezy Constant for Rough Channels Solution

Chezy Constant for Rough Channels Formula Elements

Other formulas in Uniform Turbulent Flow category

How to Evaluate Chezy Constant for Rough Channels?

FAQs on Chezy Constant for Rough Channels

Variable Name