Verification Study of Low and Higher-Order Potential Based Panel Methods for 2D Foils
Author Eça, L., Vaz, G and Falcão de Campos, J.
Title Verification Study of Low and Higher-Order Potential Based Panel Methods for 2D Foils
Conference/Journal 32nd AIAA Fluid Dynamics Conference and Exhibit
Month June
Year 2002
Number AIAA 2002-3112

Abstract
This paper presents a Verification study for one low order and two higher-order panel methods based on the perturbation potential formulation proposed by Morino. Airfoils with known analytical solutions were selected to assess the difficulties in the application of a Verification procedure to a boundary element method. The results show that the higher-order methods are superior to the low order method with regard to grid convergence order and smallness of the error. However, determination of a consistent value of the asymptotic order of accuracy was not always possible. Moreover, error estimates based on three-grid results for panel densities typical for practical applications were shown to be misleading in several cases.

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