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Friction factor for rough tube Colburn analogy Formula

GoFriction factor for Re greater than 2300 Formula

GoFriction factor for Re greater than 10000 Formula

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The Friction factor or Moody chart is the plot of the relative roughness (e/D) of a pipe against Reynold's number. Check FAQs

f = 8 \cdot St \cdot ({Pr}^{0.67})

f - Friction Factor?St - Stanton Number?Pr - Prandtl Number?

Friction factor for rough tube Colburn analogy Example

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Here is how the Friction factor for rough tube Colburn analogy equation looks like with Values.

Here is how the Friction factor for rough tube Colburn analogy equation looks like with Units.

Here is how the Friction factor for rough tube Colburn analogy equation looks like.

2.5198 = 8 \cdot 0.4 \cdot ({0.7}^{0.67})

2.5198 = 8 \cdot 0.4 \cdot ({0.7}^{0.67})

2.5198 = 8 \cdot 0.4 \cdot ({0.7}^{0.67})

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Friction factor for rough tube Colburn analogy Solution

Follow our step by step solution on how to calculate Friction factor for rough tube Colburn analogy?

FIRST Step Consider the formula

f = 8 \cdot St \cdot ({Pr}^{0.67})

Next Step Substitute values of Variables

∴

f = 8 \cdot 0.4 \cdot ({0.7}^{0.67})

Next Step Prepare to Evaluate

∴

f = 8 \cdot 0.4 \cdot ({0.7}^{0.67})

Next Step Evaluate

∴

f = 2.51979764165058

LAST Step Rounding Answer

∴

f = 2.5198

Friction factor for rough tube Colburn analogy Formula Elements

Variables

Friction Factor

The Friction factor or Moody chart is the plot of the relative roughness (e/D) of a pipe against Reynold's number.

Symbol: f

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Friction Factor

Stanton Number

The Stanton Number is a dimensionless number that measures the ratio of heat transferred into a fluid to the thermal capacity of the fluid.

Symbol: St

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Stanton Number

Prandtl Number

The Prandtl number (Pr) or Prandtl group is a dimensionless number, named after the German physicist Ludwig Prandtl, defined as the ratio of momentum diffusivity to thermal diffusivity.

Symbol: Pr

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Prandtl Number

Other Formulas to find Friction Factor

Go Friction factor for Re greater than 2300

f = 0.25 \cdot {(1.82 \cdot \log 10 (Re D) - 1.64)}^{- 2}

Go Friction factor for Re greater than 10000

f = 0.184 \cdot {Re D}^{- 0.2}

Go Friction factor for rough tubes

f = \frac{1.325}{{(\ln ((\frac{e}{3.7} \cdot D) + (\frac{5.74}{{Re}^{0.9}})))}^{2}}

Go Friction factor for transitional turbulent flow

f = 0.316 \cdot {Re D}^{- 0.25}

Other formulas in Turbulent Flow category

Go Nusselt number at entrance region

Nu = 0.036 \cdot ({Re D}^{0.8}) \cdot ({Pr}^{0.33}) \cdot {(\frac{D}{L})}^{0.055}

Go Nusselt number for short pipes

Nu Avg = Nu \cdot (1 + (\frac{a}{\frac{L}{D}}))

Go Nusselt number for Smooth tubes

Nu = 0.027 \cdot ({Re D}^{0.8}) \cdot ({Pr}^{0.333}) \cdot {(\frac{μ m}{μ w})}^{0.14}

Go Stanton number at bulk temperature

St = \frac{f}{8 \cdot ({Pr}^{0.67})}

How to Evaluate Friction factor for rough tube Colburn analogy?

Friction factor for rough tube Colburn analogy evaluator uses Friction Factor = 8*Stanton Number*(Prandtl Number^0.67) to evaluate the Friction Factor, The Friction factor for rough tube Colburn analogy formula is defined as the loss of pressure of a fluid in a pipe due to the interactions in between the fluid and the pipe. . Friction Factor is denoted by f symbol.

How to evaluate Friction factor for rough tube Colburn analogy using this online evaluator? To use this online evaluator for Friction factor for rough tube Colburn analogy, enter Stanton Number (St) & Prandtl Number (Pr) and hit the calculate button.

FAQs on Friction factor for rough tube Colburn analogy

What is the formula to find Friction factor for rough tube Colburn analogy?

The formula of Friction factor for rough tube Colburn analogy is expressed as Friction Factor = 8*Stanton Number*(Prandtl Number^0.67). Here is an example- 0.629949 = 8*0.4*(0.7^0.67).

How to calculate Friction factor for rough tube Colburn analogy?

With Stanton Number (St) & Prandtl Number (Pr) we can find Friction factor for rough tube Colburn analogy using the formula - Friction Factor = 8*Stanton Number*(Prandtl Number^0.67).

What are the other ways to Calculate Friction Factor?

Here are the different ways to Calculate Friction Factor-

Friction Factor=0.25*(1.82*log10(Reynolds Number Dia)-1.64)^-2
Friction Factor=0.184*Reynolds Number Dia^(-0.2)
Friction Factor=1.325/((ln((Surface Roughness/3.7*Diameter)+(5.74/(Reynolds Number^0.9))))^2)

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: Unit

Friction factor for rough tube Colburn analogy Formula

​GoFriction factor for Re greater than 2300 Formula

​GoFriction factor for Re greater than 10000 Formula

Friction factor for rough tube Colburn analogy Example

Friction factor for rough tube Colburn analogy Solution

Friction factor for rough tube Colburn analogy Formula Elements

Other Formulas to find Friction Factor

Other formulas in Turbulent Flow category

How to Evaluate Friction factor for rough tube Colburn analogy?

FAQs on Friction factor for rough tube Colburn analogy

Variable Name

GoFriction factor for Re greater than 2300 Formula

GoFriction factor for Re greater than 10000 Formula