Oswald Efficiency Factor Calculator

Main Category	Physics ↺
Physics	Aerodynamics ↺
Aerodynamics	Inviscid, Incompressible flow ↺
Inviscid, Incompressible flow	Incompressible flow over finite wings ↺
Incompressible flow over finite wings	Prandtl's classical lifting-line theory ↺
Prandtl's classical lifting-line theory	General lift distribution ↺
General lift distribution	Aspect ratio ↺

✖The Aspect Ratio of a wing is defined as the ratio of its span to its mean chord.ⓘ Aspect Ratio of a wing [AR]

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✖The Oswald efficiency factor is a correction factor that represents the change in drag with lift of a three-dimensional wing or airplane, as compared with an ideal wing having the same aspect ratio.ⓘ Oswald Efficiency Factor [e]

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Prasana Kannan

Sri sivasubramaniyanadar college of engineering (ssn college of engineering), Chennai

Prasana Kannan has created this Calculator and 25+ more calculators!

Kaki Varun Krishna

Mahatma Gandhi Institute of Technology (MGIT), Hyderabad

Kaki Varun Krishna has verified this Calculator and 10+ more calculators!

Oswald Efficiency Factor Solution

STEP 0: Pre-Calculation Summary

Formula Used

Oswald efficiency factor = (1.78*(1-(0.045*(Aspect Ratio of a wing^(0.68)))))-0.64
e = (1.78*(1-(0.045*(AR^(0.68)))))-0.64
This formula uses 1 Variables

Variables Used

Aspect Ratio of a wing- The Aspect Ratio of a wing is defined as the ratio of its span to its mean chord.

STEP 1: Convert Input(s) to Base Unit

Aspect Ratio of a wing: 4 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

e = (1.78*(1-(0.045*(AR^(0.68)))))-0.64 --> (1.78*(1-(0.045*(4^(0.68)))))-0.64

Evaluating ... ...

e = 0.934395171210423

STEP 3: Convert Result to Output's Unit

0.934395171210423 --> No Conversion Required

FINAL ANSWER

0.934395171210423 <-- Oswald efficiency factor

(Calculation completed in 00.000 seconds)

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Oswald Efficiency Factor

< 5 Aspect ratio Calculators

Aspect ratio of wing given lift curve slope of a finite wing

Wing Aspect Ratio VC = (2D lift curve slope*(1+Induced lift slope factor))/(pi*((2D lift curve slope/Lift curve slope)-1)) Go

Aspect ratio given induced drag factor

Wing Aspect Ratio VC = ((1+Induced drag factor)*Lift Coefficient^2)/(pi*Induced drag coefficient) Go

Aspect ratio given span efficiency factor

Wing Aspect Ratio VC = Lift Coefficient^2/(pi*Span Efficiency Factor*Induced drag coefficient) Go

Aspect ratio of wing given lift curve slope of the elliptic finite wing

Wing Aspect Ratio VC = 2D lift curve slope/(pi*((2D lift curve slope/Lift curve slope)-1)) Go

Oswald Efficiency Factor

Oswald efficiency factor = (1.78*(1-(0.045*(Aspect Ratio of a wing^(0.68)))))-0.64 Go

Oswald Efficiency Factor Formula

Oswald efficiency factor = (1.78*(1-(0.045*(Aspect Ratio of a wing^(0.68)))))-0.64
e = (1.78*(1-(0.045*(AR^(0.68)))))-0.64

What is the Aspect ratio of a wing?

The Aspect Ratio of a wing is defined to be the square of the span divided by the wing area and is given the symbol AR. For a rectangular wing, this reduces the ratio of the span to the chord length as shown in the upper right of the figure.

How to Calculate Oswald Efficiency Factor?

Oswald Efficiency Factor calculator uses Oswald efficiency factor = (1.78*(1-(0.045*(Aspect Ratio of a wing^(0.68)))))-0.64 to calculate the Oswald efficiency factor, The Oswald Efficiency Factor similar to the span efficiency is a correction factor that represents the change in drag with a lift of a three-dimensional wing or airplane. Oswald efficiency factor is denoted by e symbol.

How to calculate Oswald Efficiency Factor using this online calculator? To use this online calculator for Oswald Efficiency Factor, enter Aspect Ratio of a wing (AR) and hit the calculate button. Here is how the Oswald Efficiency Factor calculation can be explained with given input values -> 0.934395 = (1.78*(1-(0.045*(4^(0.68)))))-0.64 .

FAQ

What is Oswald Efficiency Factor?

The Oswald Efficiency Factor similar to the span efficiency is a correction factor that represents the change in drag with a lift of a three-dimensional wing or airplane and is represented as e = (1.78*(1-(0.045*(AR^(0.68)))))-0.64 or Oswald efficiency factor = (1.78*(1-(0.045*(Aspect Ratio of a wing^(0.68)))))-0.64 . The Aspect Ratio of a wing is defined as the ratio of its span to its mean chord.

How to calculate Oswald Efficiency Factor?

The Oswald Efficiency Factor similar to the span efficiency is a correction factor that represents the change in drag with a lift of a three-dimensional wing or airplane is calculated using Oswald efficiency factor = (1.78*(1-(0.045*(Aspect Ratio of a wing^(0.68)))))-0.64 . To calculate Oswald Efficiency Factor, you need Aspect Ratio of a wing (AR). With our tool, you need to enter the respective value for Aspect Ratio of a wing and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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