Lift Curve Slope for Elliptic Finite Wing Solution

STEP 0: Pre-Calculation Summary
Formula Used
Lift Curve Slope = 2D Lift Curve Slope/(1+2D Lift Curve Slope/(pi*Wing Aspect Ratio))
aC,l = a0/(1+a0/(pi*AR))
This formula uses 1 Constants, 3 Variables
Constants Used
pi - Archimedes' constant Value Taken As 3.14159265358979323846264338327950288
Variables Used
Lift Curve Slope - (Measured in 1 per Radian) - The lift curve slope is a measure of how rapidly the wing generates lift with a change in angle of attack.
2D Lift Curve Slope - (Measured in 1 per Radian) - The 2D Lift Curve Slope is a measure of how rapidly the airfoil generates lift with a change in angle of attack.
Wing Aspect Ratio - Wing Aspect Ratio is defined as the ratio of the square of wingspan to the wing area or wingspan over wing chord for a rectangular planform.
STEP 1: Convert Input(s) to Base Unit
2D Lift Curve Slope: 6.28 1 per Radian --> 6.28 1 per Radian No Conversion Required
Wing Aspect Ratio: 15 --> No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
aC,l = a0/(1+a0/(pi*AR)) --> 6.28/(1+6.28/(pi*15))
Evaluating ... ...
aC,l = 5.54150697739701
STEP 3: Convert Result to Output's Unit
5.54150697739701 1 per Radian --> No Conversion Required
FINAL ANSWER
5.54150697739701 5.541507 1 per Radian <-- Lift Curve Slope
(Calculation completed in 00.004 seconds)

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11 Flow over Wings Calculators

Aspect Ratio of Wing given Lift Curve Slope of Finite Wing
Go Wing Aspect Ratio = (2D Lift Curve Slope*(1+Induced Lift Slope Factor))/(pi*(2D Lift Curve Slope/Lift Curve Slope-1))
Lift Curve Slope for Finite Wing
Go Lift Curve Slope = 2D Lift Curve Slope/(1+(2D Lift Curve Slope*(1+Induced Lift Slope Factor))/(pi*Wing Aspect Ratio))
2D Lift Curve Slope of Airfoil given Lift Slope of Finite Wing
Go 2D Lift Curve Slope = Lift Curve Slope/(1-(Lift Curve Slope*(1+Induced Lift Slope Factor))/(pi*Wing Aspect Ratio))
Aspect Ratio given Span Efficiency Factor
Go Wing Aspect Ratio = Lift Coefficient^2/(pi*Span Efficiency Factor*Induced Drag Coefficient)
Aspect Ratio of Wing given Lift Curve Slope of Elliptic Finite Wing
Go Wing Aspect Ratio = 2D Lift Curve Slope/(pi*(2D Lift Curve Slope/Lift Curve Slope-1))
Lift Curve Slope for Elliptic Finite Wing
Go Lift Curve Slope = 2D Lift Curve Slope/(1+2D Lift Curve Slope/(pi*Wing Aspect Ratio))
2D Lift Curve Slope of Airfoil given Lift Slope of Elliptic Finite Wing
Go 2D Lift Curve Slope = Lift Curve Slope/(1-Lift Curve Slope/(pi*Wing Aspect Ratio))
Geometric Angle of Attack given Effective Angle of Attack
Go Geometric Angle of Attack = Effective Angle of Attack+Induced Angle of Attack
Induced Angle of Attack given Effective Angle of Attack
Go Induced Angle of Attack = Geometric Angle of Attack-Effective Angle of Attack
Effective Angle of Attack of Finite Wing
Go Effective Angle of Attack = Geometric Angle of Attack-Induced Angle of Attack
Oswald Efficiency Factor
Go Oswald Efficiency Factor = 1.78*(1-0.045*Wing Aspect Ratio^(0.68))-0.64

Lift Curve Slope for Elliptic Finite Wing Formula

Lift Curve Slope = 2D Lift Curve Slope/(1+2D Lift Curve Slope/(pi*Wing Aspect Ratio))
aC,l = a0/(1+a0/(pi*AR))

What does camber do to the lift curve slope?

The effect of increasing the airfoil camber causes a greater differential change in momentum of the flow around the airfoil, which causes differences in the pressure difference, thus increasing lift. However, the trade-off is that an increase in the camber of the flat plate also increases drag.

How to Calculate Lift Curve Slope for Elliptic Finite Wing?

Lift Curve Slope for Elliptic Finite Wing calculator uses Lift Curve Slope = 2D Lift Curve Slope/(1+2D Lift Curve Slope/(pi*Wing Aspect Ratio)) to calculate the Lift Curve Slope, The Lift Curve Slope for Elliptic Finite Wing formula calculates the lift curve slope of an elliptic finite wing which is assumed to be an ideal platform for the wing design. Lift Curve Slope is denoted by aC,l symbol.

How to calculate Lift Curve Slope for Elliptic Finite Wing using this online calculator? To use this online calculator for Lift Curve Slope for Elliptic Finite Wing, enter 2D Lift Curve Slope (a0) & Wing Aspect Ratio (AR) and hit the calculate button. Here is how the Lift Curve Slope for Elliptic Finite Wing calculation can be explained with given input values -> 5.541507 = 6.28/(1+6.28/(pi*15)).

FAQ

What is Lift Curve Slope for Elliptic Finite Wing?
The Lift Curve Slope for Elliptic Finite Wing formula calculates the lift curve slope of an elliptic finite wing which is assumed to be an ideal platform for the wing design and is represented as aC,l = a0/(1+a0/(pi*AR)) or Lift Curve Slope = 2D Lift Curve Slope/(1+2D Lift Curve Slope/(pi*Wing Aspect Ratio)). The 2D Lift Curve Slope is a measure of how rapidly the airfoil generates lift with a change in angle of attack & Wing Aspect Ratio is defined as the ratio of the square of wingspan to the wing area or wingspan over wing chord for a rectangular planform.
How to calculate Lift Curve Slope for Elliptic Finite Wing?
The Lift Curve Slope for Elliptic Finite Wing formula calculates the lift curve slope of an elliptic finite wing which is assumed to be an ideal platform for the wing design is calculated using Lift Curve Slope = 2D Lift Curve Slope/(1+2D Lift Curve Slope/(pi*Wing Aspect Ratio)). To calculate Lift Curve Slope for Elliptic Finite Wing, you need 2D Lift Curve Slope (a0) & Wing Aspect Ratio (AR). With our tool, you need to enter the respective value for 2D Lift Curve Slope & Wing Aspect Ratio and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
How many ways are there to calculate Lift Curve Slope?
In this formula, Lift Curve Slope uses 2D Lift Curve Slope & Wing Aspect Ratio. We can use 1 other way(s) to calculate the same, which is/are as follows -
  • Lift Curve Slope = 2D Lift Curve Slope/(1+(2D Lift Curve Slope*(1+Induced Lift Slope Factor))/(pi*Wing Aspect Ratio))
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