Abstract
Bland’s collocation method is extended to calculate aerodynamic forces on airfoils with flaps. This requires the solution of Cauchy singular integral equations with discontinuous right-hand sides. Straightforward application of collocation is shown to yield slow convergence, of order 1/N. Examination of a variety of methods that have been proposed to accelerate convergence leads us to select a simple form of extrapolation as an effective means of achieving engineering accuracy. Numerical results are presented supporting these assertions.
This work was supported by NASA Grant NSG-2140.
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Fromme, J.A., Golberg, M.A. (1979). Numerical Solution of a Class of Integral Equations Arising in Two-Dimensional Aerodynamics—The Problem of Flaps. In: Golberg, M.A. (eds) Solution Methods for Integral Equations. Mathematical Concepts and Methods in Science and Engineering, vol 18. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-1466-1_5
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