Lifting-line Theory
The Prandtl lifting-line theory, also called the Lanchester–Prandtl wing theory is a mathematical model for predicting the lift distribution over a three-dimensional wing based on its geometry.
The theory was expressed independently by Frederick W. Lanchester in 1907, and by Ludwig Prandtl in 1918–1919 after working with Albert Betz and Max Munk.
In this model, the vortex strength reduces along the wingspan, and the loss in vortex strength is shed as a vortex-sheet from the trailing edge, rather than just at the wing-tips.
Read more about Lifting-line Theory: Introduction, Principle, Derivation, Lift and Drag From Coefficients, Symmetric Wing, Rolling Wings, Control Deflection, Elliptical Wings, Useful Approximations, Limitations of The Theory
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