Numerical solution of fluid-structure interaction by the space-time discontinuous Galerkin method

Abstract

This paper is devoted to the numerical solution of the interaction of compressible viscous flow with elastic structures. The flow in a time-dependent domain is described by the compressible Navier-Stokes equations written in the ALE formulation and the deformation of elastic structures is described by the dynamic linear elasticity system.

For each individual problem we employ the discretization by the space-time discontinuous Galerkin finite element method (ST-DGM). The flow and elasticity problems are coupled via transmission conditions.

The developed method is tested by numerical experiments.

Keywords

• Numerical solution
• fluid-structure interaction
• space-time discontinuous Galerkin method