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Momentum thickness Formula

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Momentum thickness is the thickness caused by the momentum of the fluid. Check FAQs

θ = \frac{𝛿hx}{7}

θ - Momentum Thickness?𝛿hx - Hydrodynamic Boundary Layer Thickness?

Momentum thickness Example

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Here is how the Momentum thickness equation looks like with Values.

Here is how the Momentum thickness equation looks like with Units.

Here is how the Momentum thickness equation looks like.

0.3716 = \frac{2.6011}{7}

0.3716m = \frac{2.6011m}{7}

0.3716 = \frac{2.6011}{7}

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Momentum thickness Solution

Follow our step by step solution on how to calculate Momentum thickness?

FIRST Step Consider the formula

θ = \frac{𝛿hx}{7}

Next Step Substitute values of Variables

∴

θ = \frac{2.6011m}{7}

Next Step Prepare to Evaluate

∴

θ = \frac{2.6011}{7}

Next Step Evaluate

∴

θ = 0.371585m

LAST Step Rounding Answer

∴

θ = 0.3716m

Momentum thickness Formula Elements

Variables

Momentum Thickness

Momentum thickness is the thickness caused by the momentum of the fluid.

Symbol: θ

Measurement: LengthUnit: m

Note: Value can be positive or negative.

Formulas to find Momentum Thickness

Hydrodynamic Boundary Layer Thickness

Hydrodynamic Boundary Layer Thickness is the thickness of a hydrodynamic boundary at a distance of X.

Symbol: 𝛿hx

Measurement: LengthUnit: m

Note: Value can be positive or negative.

Formulas to find Hydrodynamic Boundary Layer Thickness

Other formulas in Laminar Flow category

Go Hydrodynamic boundary layer thickness at distance X from leading edge

𝛿hx = 5 \cdot x \cdot {Re x}^{- 0.5}

Go Thermal boundary layer thickness at distance X from leading edge

𝛿Tx = 𝛿hx \cdot {Pr}^{- 0.333}

Go Displacement thickness

𝛿 d = \frac{𝛿hx}{3}

Go Local Friction Coefficient given Reynolds Number

C fx = 0.664 \cdot {Re x}^{- 0.5}

How to Evaluate Momentum thickness?

Momentum thickness evaluator uses Momentum Thickness = Hydrodynamic Boundary Layer Thickness/7 to evaluate the Momentum Thickness, Momentum thickness formula is defined as a measure of the momentum of a fluid per unit width flowing over a flat plate, characterizing the boundary layer's momentum, which is essential in understanding the flow behavior and drag forces in various engineering applications. Momentum Thickness is denoted by θ symbol.

How to evaluate Momentum thickness using this online evaluator? To use this online evaluator for Momentum thickness, enter Hydrodynamic Boundary Layer Thickness (𝛿hx) and hit the calculate button.

FAQs on Momentum thickness

What is the formula to find Momentum thickness?

The formula of Momentum thickness is expressed as Momentum Thickness = Hydrodynamic Boundary Layer Thickness/7. Here is an example- 0.371585 = 2.601095/7.

How to calculate Momentum thickness?

With Hydrodynamic Boundary Layer Thickness (𝛿hx) we can find Momentum thickness using the formula - Momentum Thickness = Hydrodynamic Boundary Layer Thickness/7.

Can the Momentum thickness be negative?

Yes, the Momentum thickness, measured in Length can be negative.

Which unit is used to measure Momentum thickness?

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

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