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Molecular diffusivity of momentum given Prandtl number Formula

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Molecular diffusivity of momentum is the spread of momentum between particles (atoms or molecules) of matter, often in the fluid state. Check FAQs

Dm = Pr \cdot M dh

Dm - Molecular Diffusivity of Momentum?Pr - Prandtl Number?M_dh - Molecular Diffusivity of Heat?

Molecular diffusivity of momentum given Prandtl number Example

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Here is how the Molecular diffusivity of momentum given Prandtl number equation looks like with Values.

Here is how the Molecular diffusivity of momentum given Prandtl number equation looks like with Units.

Here is how the Molecular diffusivity of momentum given Prandtl number equation looks like.

0.504 = 0.7 \cdot 0.72

0.504m²/s = 0.7 \cdot 0.72m²/s

0.504 = 0.7 \cdot 0.72

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Molecular diffusivity of momentum given Prandtl number Solution

Follow our step by step solution on how to calculate Molecular diffusivity of momentum given Prandtl number?

FIRST Step Consider the formula

Dm = Pr \cdot M dh

Next Step Substitute values of Variables

∴

Dm = 0.7 \cdot 0.72m²/s

Next Step Prepare to Evaluate

∴

Dm = 0.7 \cdot 0.72

LAST Step Evaluate

∴

Dm = 0.504m²/s

Molecular diffusivity of momentum given Prandtl number Formula Elements

Variables

Molecular Diffusivity of Momentum

Molecular diffusivity of momentum is the spread of momentum between particles (atoms or molecules) of matter, often in the fluid state.

Symbol: Dm

Measurement: DiffusivityUnit: m²/s

Note: Value can be positive or negative.

Formulas to find Molecular Diffusivity of Momentum

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

Molecular Diffusivity of Heat

Molecular Diffusivity of Heat spread of momentum between heat of matter, often in the fluid state.

Symbol: M_dh

Measurement: DiffusivityUnit: m²/s

Note: Value can be positive or negative.

Formulas to find Molecular Diffusivity of Heat

Other formulas in Prandtl and Peclet Number category

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 Rayleigh number

Pr = \frac{Ra}{G}

Go Peclet number given Reynolds number

Pe = Re \cdot Pr

How to Evaluate Molecular diffusivity of momentum given Prandtl number?

Molecular diffusivity of momentum given Prandtl number evaluator uses Molecular Diffusivity of Momentum = Prandtl Number*Molecular Diffusivity of Heat to evaluate the Molecular Diffusivity of Momentum, The Molecular diffusivity of momentum given Prandtl number formula is defined as spread of momentum between particles (atoms or molecules) of matter, often in the fluid state. Molecular Diffusivity of Momentum is denoted by Dm symbol.

How to evaluate Molecular diffusivity of momentum given Prandtl number using this online evaluator? To use this online evaluator for Molecular diffusivity of momentum given Prandtl number, enter Prandtl Number (Pr) & Molecular Diffusivity of Heat (M_dh) and hit the calculate button.

FAQs on Molecular diffusivity of momentum given Prandtl number

What is the formula to find Molecular diffusivity of momentum given Prandtl number?

The formula of Molecular diffusivity of momentum given Prandtl number is expressed as Molecular Diffusivity of Momentum = Prandtl Number*Molecular Diffusivity of Heat. Here is an example- 0.504 = 0.7*0.72.

How to calculate Molecular diffusivity of momentum given Prandtl number?

With Prandtl Number (Pr) & Molecular Diffusivity of Heat (M_dh) we can find Molecular diffusivity of momentum given Prandtl number using the formula - Molecular Diffusivity of Momentum = Prandtl Number*Molecular Diffusivity of Heat.

Can the Molecular diffusivity of momentum given Prandtl number be negative?

Yes, the Molecular diffusivity of momentum given Prandtl number, measured in Diffusivity can be negative.

Which unit is used to measure Molecular diffusivity of momentum given Prandtl number?

Molecular diffusivity of momentum given Prandtl number is usually measured using the Square Meter Per Second[m²/s] for Diffusivity. Square Centimeter Per Second[m²/s], Square Millimeter per Second[m²/s] are the few other units in which Molecular diffusivity of momentum given Prandtl number can be measured.

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