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Thickness of Boundary Layer Formula

GoThickness of Boundary Layer for Blasius's Solution Formula

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The Thickness of Boundary Layer is the distance normal to the wall to a point where the flow velocity has essentially reached the 'asymptotic' velocity. Check FAQs

𝛿 = \frac{5.48 \cdot x}{\sqrt{R e}}

𝛿 - Thickness of Boundary Layer?x - Distance Leading Edge for Boundary Layer Flow?R_e - Reynolds Number for Boundary Layer Flow?

Thickness of Boundary Layer Example

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Here is how the Thickness of Boundary Layer equation looks like with Values.

Here is how the Thickness of Boundary Layer equation looks like with Units.

Here is how the Thickness of Boundary Layer equation looks like.

0.0154 = \frac{5.48 \cdot 1.09}{\sqrt{150000}}

0.0154m = \frac{5.48 \cdot 1.09m}{\sqrt{150000}}

0.0154 = \frac{5.48 \cdot 1.09}{\sqrt{150000}}

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Thickness of Boundary Layer Solution

Follow our step by step solution on how to calculate Thickness of Boundary Layer?

FIRST Step Consider the formula

𝛿 = \frac{5.48 \cdot x}{\sqrt{R e}}

Next Step Substitute values of Variables

∴

𝛿 = \frac{5.48 \cdot 1.09m}{\sqrt{150000}}

Next Step Prepare to Evaluate

∴

𝛿 = \frac{5.48 \cdot 1.09}{\sqrt{150000}}

Next Step Evaluate

∴

𝛿 = 0.0154227360823774m

LAST Step Rounding Answer

∴

𝛿 = 0.0154m

Thickness of Boundary Layer Formula Elements

Variables

Functions

Thickness of Boundary Layer

The Thickness of Boundary Layer is the distance normal to the wall to a point where the flow velocity has essentially reached the 'asymptotic' velocity.

Symbol: 𝛿

Measurement: LengthUnit: m

Note: Value should be greater than 0.

Formulas to find Thickness of Boundary Layer

Distance Leading Edge for Boundary Layer Flow

Distance leading edge for boundary layer flow is known as the distance of the leading edge from the plate end.

Symbol: x

Measurement: LengthUnit: m

Note: Value should be greater than 0.

Formulas to find Distance Leading Edge for Boundary Layer Flow

Reynolds Number for Boundary Layer Flow

Reynolds Number for boundary layer flow is the ratio of inertial forces to viscous forces within a fluid which is subjected to relative internal movement due to different fluid velocities.

Symbol: R_e

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Reynolds Number for Boundary Layer Flow

sqrt

A square root function is a function that takes a non-negative number as an input and returns the square root of the given input number.

Syntax: sqrt(Number)

Other Formulas to find Thickness of Boundary Layer

Go Thickness of Boundary Layer for Blasius's Solution

𝛿 = \frac{4.91 \cdot x}{\sqrt{R e}}

Other formulas in Boundary Layer Flow category

Go Reynold Number at End of Plate

R e = \frac{ρ f \cdot V ∞ \cdot L}{μ}

Go Length of Plate for Reynold Number

L = \frac{R e \cdot μ}{ρ f \cdot V ∞}

Go Velocity of Fluid for Reynold Number

V ∞ = \frac{R e \cdot μ}{ρ f \cdot L}

Go Distance from Leading Edge

x = 𝛿 \cdot \frac{\sqrt{R e}}{5.48}

How to Evaluate Thickness of Boundary Layer?

Thickness of Boundary Layer evaluator uses Thickness of Boundary Layer = (5.48*Distance Leading Edge for Boundary Layer Flow)/(sqrt(Reynolds Number for Boundary Layer Flow)) to evaluate the Thickness of Boundary Layer, The Thickness of boundary layer formula is known while considering the ratio of the distance from the leading edge with a constant value to the Reynolds number at the end of the plate. Thickness of Boundary Layer is denoted by 𝛿 symbol.

How to evaluate Thickness of Boundary Layer using this online evaluator? To use this online evaluator for Thickness of Boundary Layer, enter Distance Leading Edge for Boundary Layer Flow (x) & Reynolds Number for Boundary Layer Flow (R_e) and hit the calculate button.

FAQs on Thickness of Boundary Layer

What is the formula to find Thickness of Boundary Layer?

The formula of Thickness of Boundary Layer is expressed as Thickness of Boundary Layer = (5.48*Distance Leading Edge for Boundary Layer Flow)/(sqrt(Reynolds Number for Boundary Layer Flow)). Here is an example- 0.015423 = (5.48*1.09)/(sqrt(150000)).

How to calculate Thickness of Boundary Layer?

With Distance Leading Edge for Boundary Layer Flow (x) & Reynolds Number for Boundary Layer Flow (R_e) we can find Thickness of Boundary Layer using the formula - Thickness of Boundary Layer = (5.48*Distance Leading Edge for Boundary Layer Flow)/(sqrt(Reynolds Number for Boundary Layer Flow)). This formula also uses Square Root (sqrt) function(s).

What are the other ways to Calculate Thickness of Boundary Layer?

Here are the different ways to Calculate Thickness of Boundary Layer-

Thickness of Boundary Layer=(4.91*Distance Leading Edge for Boundary Layer Flow)/(sqrt(Reynolds Number for Boundary Layer Flow))

Can the Thickness of Boundary Layer be negative?

No, the Thickness of Boundary Layer, measured in Length cannot be negative.

Which unit is used to measure Thickness of Boundary Layer?

Thickness of Boundary Layer is usually measured using the Meter[m] for Length. Millimeter[m], Kilometer[m], Decimeter[m] are the few other units in which Thickness of Boundary Layer can be measured.

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Thickness of Boundary Layer Formula

​GoThickness of Boundary Layer for Blasius's Solution Formula

Thickness of Boundary Layer Example

Thickness of Boundary Layer Solution

Thickness of Boundary Layer Formula Elements

Other Formulas to find Thickness of Boundary Layer

Other formulas in Boundary Layer Flow category

How to Evaluate Thickness of Boundary Layer?

FAQs on Thickness of Boundary Layer

Variable Name

GoThickness of Boundary Layer for Blasius's Solution Formula