Numerical simulations of nonlinear post-critical vibrations of an airfoil after flutter instability

• ID: 2579, RIV: 10103893
• ISSN: neuvedeno, ISBN: 0-000-00000-0
• zdroj: Proceedings of the ASME 2011 Pressure Vessels & Piping Division Conference (PVP2011)
• klíčová slova: numerical simulations; nonlinear post-critical vibrations; airfoil; flutter instability; ALE method; finite element method
• autoři: Jaromír Horáček, Miloslav Feistauer, Petr Sváček
• autoři z KNM: Feistauer Miloslav

Abstrakt

The contribution deals with the numerical simulation of the flutter of an airfoil with three degrees of freedom. The finite element solution of 2D incompressible Navier-Stokes equations written in the ALE form is coupled with a system of nonlinear ordinary differential equations describing the airfoil vibrations.