Analysis and development of a monolithic computational approach for fluid–structure interaction by means of the finite element method

The phenomenon of fluid–structure interaction (FSI) appears in many engineering applications. Its computation allows to quantify the mechanical behaviour of both fluid and structure interacting with each other. For that purpose, appropriate field equations are specified for an incompressible, viscous fluid and a linear elastic solid. The domain movement is considered by utilizing the arbitrary Lagrangean–Eulerian viewpoint for the fluid equations. Within a monolithic computational approach the fluid and structure equations are solved numerically in the reference configuration by means of the finite element method (FEM). The solution method is validated using numerically computed reference data for a benchmark problem. A novel FEM is introduced for the monolithic computation of FSI allowing a straightforward coupling to further field quantities. It is then extended to a computational approach for the thermomechanical FSI of an incompressible Navier–Stokes–Fourier fluid and a linear thermoelastic structure.

Author dc:creator

• Piekny, Florian

Licence dc:rights.uri

• https://creativecommons.org/licenses/by/4.0/

Language dc:language.iso

en

Identifier URI

http://dx.doi.org/10.14279/depositonce-9371

OAI identifier oai:identifier

oai:depositonce.tu-berlin.de:11303/10419