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The Induced Drag Coefficient ELD is a dimensionless parameter that describes a relation between the coefficient of the lift and the aspect ratio. It quantifies the drag generated as a byproduct of lift production in aerodynamic systems.
The calculator uses the formula:
Where:
Explanation: The equation shows that induced drag increases with the square of the lift coefficient and decreases with increasing aspect ratio, following fundamental aerodynamic principles.
Details: Accurate induced drag calculation is crucial for aircraft performance analysis, wing design optimization, and fuel efficiency calculations. It represents a significant portion of total drag, especially at lower speeds and higher angles of attack.
Tips: Enter the lift coefficient and wing aspect ratio as positive dimensionless values. Both inputs must be greater than zero for valid calculation.
Q1: What is induced drag?
A: Induced drag is the drag created as a result of lift generation, caused by the vortices formed at wingtips due to pressure differences.
Q2: How does aspect ratio affect induced drag?
A: Higher aspect ratio wings produce less induced drag because they generate lift more efficiently with reduced wingtip vortices.
Q3: What are typical values for induced drag coefficient?
A: Values typically range from 0.01 to 0.1 for most aircraft configurations, depending on flight conditions and wing design.
Q4: Can this formula be used for all wing types?
A: This formula provides a good approximation for conventional wings but may need modifications for highly swept wings, delta wings, or wings with significant planform variations.
Q5: How does lift coefficient affect induced drag?
A: Induced drag increases with the square of the lift coefficient, meaning that higher lift production results in significantly higher induced drag.