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Local Nusselt number Formula

GoLocal Nusselt number for constant heat flux Formula

GoLocal Nusselt number given Grashof number Formula

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Local Nusselt number is the ratio of convective to conductive heat transfer across a boundary. Check FAQs

Nu x = 2 \cdot \frac{x}{dx}

Nu_x - Local Nusselt Number?x - Distance from Point to YY Axis?dx - Boundary Layer Thickens?

Local Nusselt number Example

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With units

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Here is how the Local Nusselt number equation looks like with Values.

Here is how the Local Nusselt number equation looks like with Units.

Here is how the Local Nusselt number equation looks like.

3.6 = 2 \cdot \frac{0.0009}{0.0005}

3.6 = 2 \cdot \frac{0.0009m}{0.0005m}

3.6 = 2 \cdot \frac{0.0009}{0.0005}

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Local Nusselt number Solution

Follow our step by step solution on how to calculate Local Nusselt number?

FIRST Step Consider the formula

Nu x = 2 \cdot \frac{x}{dx}

Next Step Substitute values of Variables

∴

Nu x = 2 \cdot \frac{0.0009m}{0.0005m}

Next Step Prepare to Evaluate

∴

Nu x = 2 \cdot \frac{0.0009}{0.0005}

LAST Step Evaluate

∴

Nu x = 3.6

Local Nusselt number Formula Elements

Variables

Local Nusselt Number

Local Nusselt number is the ratio of convective to conductive heat transfer across a boundary.

Symbol: Nu_x

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Local Nusselt Number

Distance from Point to YY Axis

Distance from Point to YY Axis is the distance from the point to the YY axis where stress is to be computed.

Symbol: x

Measurement: LengthUnit: m

Note: Value can be positive or negative.

Formulas to find Distance from Point to YY Axis

Boundary Layer Thickens

Boundary layer thickens is defined as the distance from the solid body to the point at which the viscous flow velocity is 99% of the freestream velocity.

Symbol: dx

Measurement: LengthUnit: m

Note: Value can be positive or negative.

Formulas to find Boundary Layer Thickens

Other Formulas to find Local Nusselt Number

Go Local Nusselt number for constant heat flux

Nu x = 0.508 \cdot ({Pr}^{0.5}) \cdot ({(0.952 + Pr)}^{- 0.25}) \cdot ({Gr x}^{0.25})

Go Local Nusselt number given Grashof number

Nu x = 0.6 \cdot ({(Gr x \cdot Pr)}^{0.2})

Go Local Nusselt number for constant heat flux for Grashof number

Nu x = 0.17 \cdot ({(G \cdot Pr)}^{0.25})

Other formulas in Local and Average Nusselt Number category

Go Average Nusselt number upto L

Nu avgl = (\frac{5}{4}) \cdot Nu L

Go Average Nusselt number for constant wall temperature

Nu avgl = 0.68 + (\frac{0.67 \cdot ({(G \cdot Pr)}^{0.25})}{{(1 + {(\frac{0.492}{Pr})}^{0.5625})}^{0.444}})

Go Average Nusselt number upto length L for constant heat flux

Nu avgl = (\frac{5}{4}) \cdot Nu d

How to Evaluate Local Nusselt number?

Local Nusselt number evaluator uses Local Nusselt Number = 2*Distance from Point to YY Axis/Boundary Layer Thickens to evaluate the Local Nusselt Number, The Local Nusselt number formula is defined as the ratio of convective to conductive heat transfer across a boundary. Local Nusselt Number is denoted by Nu_x symbol.

How to evaluate Local Nusselt number using this online evaluator? To use this online evaluator for Local Nusselt number, enter Distance from Point to YY Axis (x) & Boundary Layer Thickens (dx) and hit the calculate button.

FAQs on Local Nusselt number

What is the formula to find Local Nusselt number?

The formula of Local Nusselt number is expressed as Local Nusselt Number = 2*Distance from Point to YY Axis/Boundary Layer Thickens. Here is an example- 6000 = 2*0.0009/0.0005.

How to calculate Local Nusselt number?

With Distance from Point to YY Axis (x) & Boundary Layer Thickens (dx) we can find Local Nusselt number using the formula - Local Nusselt Number = 2*Distance from Point to YY Axis/Boundary Layer Thickens.

What are the other ways to Calculate Local Nusselt Number?

Here are the different ways to Calculate Local Nusselt Number-

Local Nusselt Number=0.508*(Prandtl Number^0.5)*((0.952+Prandtl Number)^(-0.25))*(Local Grashof Number^0.25)
Local Nusselt Number=0.6*((Local Grashof Number*Prandtl Number)^0.2)
Local Nusselt Number=0.17*((Grashof Number*Prandtl Number)^0.25)

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Local Nusselt number Formula

​GoLocal Nusselt number for constant heat flux Formula

​GoLocal Nusselt number given Grashof number Formula

Local Nusselt number Example

Local Nusselt number Solution

Local Nusselt number Formula Elements

Other Formulas to find Local Nusselt Number

Other formulas in Local and Average Nusselt Number category

How to Evaluate Local Nusselt number?

FAQs on Local Nusselt number

Variable Name

GoLocal Nusselt number for constant heat flux Formula

GoLocal Nusselt number given Grashof number Formula