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An Iterative Non-Linear Lifting Line Model For Wings with Unsymmetrical Stall
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English
Abstract
A numerical non-linear lifting line model is presented which predicts the behavior of a wing beyond the stall given two-dimensional airfoil data. The model, although relatively simple, appears to predict fairly complex stall effects including hysteresis and unsymmetrical spanwise lift distributions with partial-span stall. The numerical model runs rapidly on an IBM-Compatible PC and does not require any extensive CFD-type of calculations. Because of its speed and apparent accuracy in modeling the physical behavior of a stalled wing, it may find application to the simulation of airplane motion beyond the stall. Although the numerical model was developed independently here a similar approach has been tried previously by others. These previous efforts and a comparison with the present results are discussed briefly.
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Citation
McCormick, B., "An Iterative Non-Linear Lifting Line Model For Wings with Unsymmetrical Stall," SAE Technical Paper 891020, 1989, https://doi.org/10.4271/891020.Also In
References
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