Analysis of steady and unsteady flows past fixed or oscillating wings.

摘要

In the last decades, several numerical methods have been developed for the study of steady and unsteady flows past fixed or oscillating wings. Several studies were also conducted to analyze the structural oscillations of wings subjected to aerodynamic loading and to explore the possibilities of suppressing the aeroelastic oscillations of the wings, for example by using piezoelectric strips. However, it was difficult to use efficiently these numerical methods for the analysis of wing oscillations including the effect of the vibration-suppressing elements.; This work presents an analytical method for the analysis of steady and unsteady flows past fixed or oscillating wings, which may be efficiently used for complex problems involving the structural dynamics analysis of the wing. The method is first validated for steady flows past fixed wings. Then results are presented for unsteady flows past oscillating wings in comparison with previous results.