On numerical simulation of airfoil vibrations induced by compressible flow

• ID: 2610, RIV: 10128843
• ISSN: neuvedeno, ISBN: 978-80-227-3742-5
• zdroj: ALGORITMY 2012, 19th Conference on Scientific Computing
• klíčová slova: numerical simulation; airfoil vibrations; compressible flow; DGM
• autoři: Miloslav Feistauer, Jan Česenek
• autoři z KNM: Feistauer Miloslav

Abstrakt

The subject of the paper is the numerical simulation of the interaction of two-dimensional compressible viscous flow and a vibrating airfoil. The airfoil is considered as a solid body with two degrees of freedom, moving in the vertical direction and rotating around an elastic axis. The numerical simulation consists of the solution of the Navier-Stokes system by the space discontinuous Galerkin method combined with BDF in time, coupled with a system of nonlinear ordinary differential equations describing the airfoil motion. The time-dependent computational domain and a moving grid are taken into account by the arbitrary Lagrangian-Eulerian (ALE) formulation of the Navier-Stokes equations. The applicability of the developed method is demonstrated by numerical experiments.