Interaction of compressibe flow with an airfoil

• ID: 2446, RIV: 10081018
• ISSN: not specified, ISBN: 978-80-85823-57-8
• source: Programs and Algorithms of Numerical Mathematics 15
• keywords: fluid-structure interaction; compressible flow; discontinuous Galerkin method; ALE method
• authors: Jan Česenek, Miloslav Feistauer
• authors from KNM: Feistauer Miloslav

Abstract

The paper is concerned with the numerical solution of interaction of compressible flow and a vibrating airfoil with two degrees of freedom, which can rotate around an elastic axis and oscillate in the vertical direction. Compressible flow is described by the Navier-Stokes equations written in the ALE form. This system is discretized by the semi-implicit discontinuous Galerkin finite element method (DGFEM) and coupled with the solution of ordinary differential equations describing the airfoil motion. Computational results showing the flow induced airfoil vibrations are presented.