Edge Singularities and Kutta Condition in 3D Aerodynamics

Author: Bassanini P.  

Publisher: Springer Publishing Company

ISSN: 0025-6455

Source: Meccanica, Vol.34, Iss.3, 1999-08, pp. : 199-229

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Abstract

This review paper presents a unified formulation of the Kutta condition for steady and unsteady flows, implemented by removing all unbounded velocity singularities (of power-law and logarithmic type) at the trailing edge, and including nonlinear wakes and thick swept-back wings. A suitable boundary integral approach is adopted and the uniqueness issue is discussed for several wing configurations of interest in aerodynamics. Sommario. Si presenta una formulazione unificata della condizione di Kutta per flussi stazionari e non stazionari, ottenuta imponendo la limitatezza della velocità al bordo d’uscita, e valida nel caso nonlineare anche per ali a freccia. Si utilizza un opportuno approccio integrale al contorno e si discute il problema dell’unicità per svariate configurazioni alari di interesse nelle applicazioni.