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Prandtl number given Rayleigh number Formula

GoPrandtl number in convection Formula

GoPrandtl number given Stanton number and other dimensionless groups Formula

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Prandtl Number or Prandtl group is a dimensionless number, named after the German physicist Ludwig Prandtl, defined as the ratio of momentum diffusivity to thermal diffusivity. Check FAQs

Pr = \frac{Ra}{G}

Pr - Prandtl Number?Ra - Rayleigh Number?G - Grashof Number?

Prandtl number given Rayleigh number Example

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Here is how the Prandtl number given Rayleigh number equation looks like with Values.

Here is how the Prandtl number given Rayleigh number equation looks like with Units.

Here is how the Prandtl number given Rayleigh number equation looks like.

0.7 = \frac{0.21}{0.3}

0.7 = \frac{0.21}{0.3}

0.7 = \frac{0.21}{0.3}

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Prandtl number given Rayleigh number Solution

Follow our step by step solution on how to calculate Prandtl number given Rayleigh number?

FIRST Step Consider the formula

Pr = \frac{Ra}{G}

Next Step Substitute values of Variables

∴

Pr = \frac{0.21}{0.3}

Next Step Prepare to Evaluate

∴

Pr = \frac{0.21}{0.3}

LAST Step Evaluate

∴

Pr = 0.7

Prandtl number given Rayleigh number Formula Elements

Variables

Prandtl Number

Prandtl Number 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

Rayleigh Number

Rayleigh Number is a dimensionless parameter that is a measure of the instability of a layer of fluid due to differences of temperature and density at the top and bottom.

Symbol: Ra

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Rayleigh Number

Grashof Number

Grashof number approximates the ratio of the buoyancy to viscous force acting on a fluid.

Symbol: G

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Grashof Number

Other Formulas to find Prandtl Number

Go Prandtl number in convection

Pr = \frac{Dm}{M dh}

Go Prandtl number given Stanton number and other dimensionless groups

Pr = \frac{Nu}{St \cdot Re}

Go Prandtl number given Peclet number

Pr = \frac{Pe}{Re}

Go Prandtl number given Graetz numbber

Pr = Gr \cdot \frac{L}{Re \cdot D}

Other formulas in Prandtl and Peclet Number category

Go Peclet number given Reynolds number

Pe = Re \cdot Pr

Go Turbulent Prandtl Number

Pr t = \frac{ε M}{ε H}

Go Modified Prandtl number given Bingham number

Pr' = Pr \cdot (1 + B n)

Go Peclet Number given Schmidt Number

Pe = (Re \cdot Sc)

How to Evaluate Prandtl number given Rayleigh number?

Prandtl number given Rayleigh number evaluator uses Prandtl Number = Rayleigh Number/Grashof Number to evaluate the Prandtl Number, Prandtl number given Rayleigh number is a dimensionless number that indicates the relative thickness of the velocity boundary layer to the thermal boundary layer in a fluid flow. It's particularly useful in analyzing heat transfer in fluid flows, such as those in natural convection scenarios. Prandtl Number is denoted by Pr symbol.

How to evaluate Prandtl number given Rayleigh number using this online evaluator? To use this online evaluator for Prandtl number given Rayleigh number, enter Rayleigh Number (Ra) & Grashof Number (G) and hit the calculate button.

FAQs on Prandtl number given Rayleigh number

What is the formula to find Prandtl number given Rayleigh number?

The formula of Prandtl number given Rayleigh number is expressed as Prandtl Number = Rayleigh Number/Grashof Number. Here is an example- 2 = 0.21/0.3.

How to calculate Prandtl number given Rayleigh number?

With Rayleigh Number (Ra) & Grashof Number (G) we can find Prandtl number given Rayleigh number using the formula - Prandtl Number = Rayleigh Number/Grashof Number.

What are the other ways to Calculate Prandtl Number?

Here are the different ways to Calculate Prandtl Number-

Prandtl Number=Molecular Diffusivity of Momentum/Molecular Diffusivity of Heat
Prandtl Number=Nusselt Number/(Stanton Number*Reynolds Number)
Prandtl Number=Peclet Number/Reynolds Number

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Prandtl number given Rayleigh number Formula

​GoPrandtl number in convection Formula

​GoPrandtl number given Stanton number and other dimensionless groups Formula

Prandtl number given Rayleigh number Example

Prandtl number given Rayleigh number Solution

Prandtl number given Rayleigh number Formula Elements

Other Formulas to find Prandtl Number

Other formulas in Prandtl and Peclet Number category

How to Evaluate Prandtl number given Rayleigh number?

FAQs on Prandtl number given Rayleigh number

Variable Name

GoPrandtl number in convection Formula

GoPrandtl number given Stanton number and other dimensionless groups Formula