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)

Volume

26

Pages

11

Published

2000

Size

974 kb

Paper DOI

10.2495/BE000281

Copyright

WIT Press

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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