Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Application of Galerkin method to the solution of aerodynamic models based on the lifting-line theory
Submission Author:
Felipe Liorbano , SP
Co-Authors:
Luís Antonio Vieira Pelegrineli, Ricardo Afonso Angélico, Felipe Liorbano
Presenter: Felipe Liorbano
doi://10.26678/ABCM.COBEM2017.COB17-2863
Abstract
The lifting-line theory (LLT) provided the first reasonable prediction of the finite wings aerodynamic coefficients and it is still in use nowadays in the initial phases of the aircraft design. However, its fundamental equation has a singularity point, which led many authors to develop numerical procedures to overcome this problem. This paper proposes to solve the lifting-line theory equation via Galerkin method, which was compared to the classical solution via Fourier series. The results obtained for a rectangular and a trapezoidal wing showed a good agreement between the two techniques, with an absolute error inferior to 33:9 E-5 for the circulation.
Keywords
Galerkin's method, lifting-line, Computational Aerodynamics
