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Reynolds Number for Airfoil Formula

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The Reynolds Number is the ratio of inertial forces to viscous forces. The Reynolds number is used to determine whether a fluid is laminar or turbulent. Check FAQs

Re = \frac{ρ f \cdot V flow \cdot c}{μ}

Re - Reynolds Number?ρ_f - Density of Fluid?V_flow - Flow Velocity?c - Chord Length of Airfoil?μ - Dynamic Viscosity?

Reynolds Number for Airfoil Example

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Here is how the Reynolds Number for Airfoil equation looks like with Values.

Here is how the Reynolds Number for Airfoil equation looks like with Units.

Here is how the Reynolds Number for Airfoil equation looks like.

3000 = \frac{170.194 \cdot 39.9544 \cdot 0.45}{10.2}

3000 = \frac{170.194kg/m³ \cdot 39.9544m/s \cdot 0.45m}{10.2P}

3000 = \frac{170.194 \cdot 39.9544 \cdot 0.45}{10.2}

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Reynolds Number for Airfoil Solution

Follow our step by step solution on how to calculate Reynolds Number for Airfoil?

FIRST Step Consider the formula

Re = \frac{ρ f \cdot V flow \cdot c}{μ}

Next Step Substitute values of Variables

∴

Re = \frac{170.194kg/m³ \cdot 39.9544m/s \cdot 0.45m}{10.2P}

Next Step Convert Units

∴

Re = \frac{170.194kg/m³ \cdot 39.9544m/s \cdot 0.45m}{1.02Pa*s}

Next Step Prepare to Evaluate

∴

Re = \frac{170.194 \cdot 39.9544 \cdot 0.45}{1.02}

Next Step Evaluate

∴

Re = 3000.0000007627

LAST Step Rounding Answer

∴

Re = 3000

Reynolds Number for Airfoil Formula Elements

Variables

Reynolds Number

The Reynolds Number is the ratio of inertial forces to viscous forces. The Reynolds number is used to determine whether a fluid is laminar or turbulent.

Symbol: Re

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Reynolds Number

Density of Fluid

Density of Fluid is defined as the mass of fluid per unit volume of the said fluid.

Symbol: ρ_f

Measurement: DensityUnit: kg/m³

Note: Value should be greater than 0.

Formulas to find Density of Fluid

Flow Velocity

Flow Velocity refers to the speed at which a fluid moves through a particular area or space.

Symbol: V_flow

Measurement: SpeedUnit: m/s

Note: Value should be greater than 0.

Formulas to find Flow Velocity

Chord Length of Airfoil

The Chord Length of Airfoil is the distance from the leading edge to the trailing edge.

Symbol: c

Measurement: LengthUnit: m

Note: Value should be greater than 0.

Formulas to find Chord Length of Airfoil

Dynamic Viscosity

The Dynamic Viscosity of a fluid is the measure of its resistance to flow when an external force is applied.

Symbol: μ

Measurement: Dynamic ViscosityUnit: P

Note: Value should be greater than 0.

Formulas to find Dynamic Viscosity

Other formulas in Computational Fluid Dyanmics category

Go Drag on Airfoil

D = N \cdot \sin (α °) + A \cdot \cos (α °)

Go Friction Velocity for Airfoil

U f = {(\frac{T w}{ρ})}^{0.5}

Go Lift on Airfoil

L = N \cdot \cos (α °) - A \cdot \sin (α °)

Go Skin Friction Coefficient

C f = {(2 \cdot \log 10 (Re) - 0.65)}^{- 2.30}

How to Evaluate Reynolds Number for Airfoil?

Reynolds Number for Airfoil evaluator uses Reynolds Number = (Density of Fluid*Flow Velocity*Chord Length of Airfoil)/Dynamic Viscosity to evaluate the Reynolds Number, The Reynolds Number for airfoil is a dimensionless value that is used to determine whether the fluid is exhibiting laminar flow (R less than 2300) or turbulent flow (R greater than 4000). Reynolds Number is denoted by Re symbol.

How to evaluate Reynolds Number for Airfoil using this online evaluator? To use this online evaluator for Reynolds Number for Airfoil, enter Density of Fluid (ρ_f), Flow Velocity (V_flow), Chord Length of Airfoil (c) & Dynamic Viscosity (μ) and hit the calculate button.

FAQs on Reynolds Number for Airfoil

What is the formula to find Reynolds Number for Airfoil?

The formula of Reynolds Number for Airfoil is expressed as Reynolds Number = (Density of Fluid*Flow Velocity*Chord Length of Airfoil)/Dynamic Viscosity. Here is an example- 3000 = (170.194007*39.95440334*0.45)/1.02.

How to calculate Reynolds Number for Airfoil?

With Density of Fluid (ρ_f), Flow Velocity (V_flow), Chord Length of Airfoil (c) & Dynamic Viscosity (μ) we can find Reynolds Number for Airfoil using the formula - Reynolds Number = (Density of Fluid*Flow Velocity*Chord Length of Airfoil)/Dynamic Viscosity.

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Reynolds Number for Airfoil Formula

Reynolds Number for Airfoil Example

Reynolds Number for Airfoil Solution

Reynolds Number for Airfoil Formula Elements

Other formulas in Computational Fluid Dyanmics category

How to Evaluate Reynolds Number for Airfoil?

FAQs on Reynolds Number for Airfoil

Variable Name