DGFEM for the analysis of wing vibrations under transonic flow conditions

• ID: 2598, RIV: 10130182
• ISSN: not specified, ISBN: 978-80-87012-43-7
• source: Interaction and Feedbacks 2012. XIX-th National Seminar with International Participation
• keywords: DGFEM; wing vibrations; transonic flow; ALE method
• authors: Petr Šimánek, Miloslav Feistauer
• authors from KNM: Feistauer Miloslav

Abstract

This work is concerned with numerical solution of the air-wing interaction. We deal with 3D compressible viscous flow in a time-dependent domain. The flow is described by equations representing conservation laws - the Navier-Stokes equations, the continuity equation and the energy equation together with some boundary conditions and an initial condition. We solve this system of partial differential equations by the discontinuous Galerkin finite element method (DGFEM). This numerical method is suitable for high-order space discretization and for the use on unstructed grids. Since we assume the time-dependent domain, we have to apply a suitable technique working on moving meshes. Here the Arbitrary Lagrangian-Eulerian (ALE) method is used.