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Lift on Airfoil Formula

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Lift on Airfoil is component of resultant force acting on airfoil perpendicular to freestream Velocity. Check FAQs

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

L - Lift on Airfoil?N - Normal Force on Airfoil?α^° - Angle of Attack of Airfoil?A - Axial Force on Airfoil?

Lift on Airfoil Example

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Here is how the Lift on Airfoil equation looks like with Values.

Here is how the Lift on Airfoil equation looks like with Units.

Here is how the Lift on Airfoil equation looks like.

8.1095 = 11 \cdot \cos (8) - 20 \cdot \sin (8)

8.1095N = 11N \cdot \cos (8°) - 20N \cdot \sin (8°)

8.1095 = 11 \cdot \cos (8) - 20 \cdot \sin (8)

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Lift on Airfoil Solution

Follow our step by step solution on how to calculate Lift on Airfoil?

FIRST Step Consider the formula

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

Next Step Substitute values of Variables

∴

L = 11N \cdot \cos (8°) - 20N \cdot \sin (8°)

Next Step Convert Units

∴

L = 11N \cdot \cos (0.1396rad) - 20N \cdot \sin (0.1396rad)

Next Step Prepare to Evaluate

∴

L = 11 \cdot \cos (0.1396) - 20 \cdot \sin (0.1396)

Next Step Evaluate

∴

L = 8.10948673695653N

LAST Step Rounding Answer

∴

L = 8.1095N

Lift on Airfoil Formula Elements

Variables

Functions

Lift on Airfoil

Lift on Airfoil is component of resultant force acting on airfoil perpendicular to freestream Velocity.

Symbol: L

Measurement: ForceUnit: N

Note: Value can be positive or negative.

Formulas to find Lift on Airfoil

Normal Force on Airfoil

Normal Force on Airfoil is component of resultant force acting on airfoil perpendicular to chord.

Symbol: N

Measurement: ForceUnit: N

Note: Value can be positive or negative.

Formulas to find Normal Force on Airfoil

Angle of Attack of Airfoil

The Angle of Attack of Airfoil is the angle between freestream velocity and chord of the airfoil.

Symbol: α^°

Measurement: AngleUnit: °

Note: Value can be positive or negative.

Formulas to find Angle of Attack of Airfoil

Axial Force on Airfoil

Axial Force on Airfoil is component of resultant force acting on airfoil parallel to chord.

Symbol: A

Measurement: ForceUnit: N

Note: Value can be positive or negative.

Formulas to find Axial Force on Airfoil

sin

Sine is a trigonometric function that describes the ratio of the length of the opposite side of a right triangle to the length of the hypotenuse.

Syntax: sin(Angle)

cos

Cosine of an angle is the ratio of the side adjacent to the angle to the hypotenuse of the triangle.

Syntax: cos(Angle)

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 Reynolds Number for Airfoil

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

Go Skin Friction Coefficient

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

How to Evaluate Lift on Airfoil?

Lift on Airfoil evaluator uses Lift on Airfoil = Normal Force on Airfoil*cos(Angle of Attack of Airfoil)-Axial Force on Airfoil*sin(Angle of Attack of Airfoil) to evaluate the Lift on Airfoil, The Lift on Airfoil is the aerodynamic force that acts perpendicular to the direction of the airflow over the airfoil's surface. It is generated as a result of the pressure difference between the upper and lower surfaces of the airfoil. Lift is what enables an aircraft to generate upward force and stay aloft. Lift on Airfoil is denoted by L symbol.

How to evaluate Lift on Airfoil using this online evaluator? To use this online evaluator for Lift on Airfoil, enter Normal Force on Airfoil (N), Angle of Attack of Airfoil (α^°) & Axial Force on Airfoil (A) and hit the calculate button.

FAQs on Lift on Airfoil

What is the formula to find Lift on Airfoil?

The formula of Lift on Airfoil is expressed as Lift on Airfoil = Normal Force on Airfoil*cos(Angle of Attack of Airfoil)-Axial Force on Airfoil*sin(Angle of Attack of Airfoil). Here is an example- 8.109487 = 11*cos(0.13962634015952)-20*sin(0.13962634015952).

How to calculate Lift on Airfoil?

With Normal Force on Airfoil (N), Angle of Attack of Airfoil (α^°) & Axial Force on Airfoil (A) we can find Lift on Airfoil using the formula - Lift on Airfoil = Normal Force on Airfoil*cos(Angle of Attack of Airfoil)-Axial Force on Airfoil*sin(Angle of Attack of Airfoil). This formula also uses Sine (sin), Cosine (cos) function(s).

Can the Lift on Airfoil be negative?

Yes, the Lift on Airfoil, measured in Force can be negative.

Which unit is used to measure Lift on Airfoil?

Lift on Airfoil is usually measured using the Newton[N] for Force. Exanewton[N], Meganewton[N], Kilonewton[N] are the few other units in which Lift on Airfoil can be measured.

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Lift on Airfoil Formula

Lift on Airfoil Example

Lift on Airfoil Solution

Lift on Airfoil Formula Elements

Other formulas in Computational Fluid Dyanmics category

How to Evaluate Lift on Airfoil?

FAQs on Lift on Airfoil

Variable Name