WIT Press


A Comparison Of Velocity And Potential Based Boundary Element Methods For The Analysis Of Steady 2D Flow Around Foils

Price

Free (open access)

Paper DOI

10.2495/BE000281

Volume

26

Pages

11

Published

2000

Size

974 kb

Author(s)

G.B. Vaz, L. Eca, J.A.C. Falcao de Campos

Abstract

The potential based BEM Morino variant is compared with a modified ver- sion of the velocity based method proposed by Hess, on the calculation of potential flow around 2-dimensional foils. In the Morino method, several numerical implementations of the Kutta condition are investigated. The test cases for the comparison of the two methods are analytical foils ob- tained by conformal mapping techniques: Joukowski and Karman-Trefftz. Surface solutions are presented and the main drawbacks and advantages for each formulation are discussed. A verification study performed for the two test cases reveals the existence of difficulties for the Morino method in foils with a cusped trailing edge. 1 Introduction In most of the original panel me

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