| Hybridized enriched space-time finite element method for analysis of thin-walled structures immersed in generalized Newtonian fluids |
| English |
| Zilian, Andreas  [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit >] |
| Netuzhylov, H. [Technische Universität Braunschweig, Computational Sciences in Engineering, Beethovenstraße 51, 38106 Braunschweig, Germany] |
| 2010 |
| Computers and Structures |
| 88 |
| 21-22 |
| 1265-1277 |
| Yes (verified by ORBilu) |
| 0045-7949 |
| [en] Embedded thin structure ; Enriched space-time approximation ; Fluid-structure interaction ; Strong coupling ; Approximation spaces ; Enriched space-time finite elements ; Fluid-structure interaction problem ; Generalized Newtonian fluid ; Hybrid interface ; Non-smooth ; Numerical treatments ; Simultaneous solution ; Space-time finite element method ; Thin structure ; Velocity-based ; Compressible flow ; Fluid structure interaction ; Fluids ; Lagrange multipliers ; Thin walled structures ; Finite element method |
| [en] The paper addresses the numerical treatment of a specific class of fluid-structure interaction problems: flow-immersed thin structures undergoing considerable motion and deformation. The simultaneous solution procedure uses a mixed-hybrid velocity-based formulation of both fluid and structure discretized by a stabilized time-discontinuous space-time finite element method. The continuity at the interface is ensured by a localized mixed-hybrid interface method avoiding Lagrange multipliers and penalty approaches. The XFEM is utilized for enrichment of the approximation space of the fluid variables in order to represent non-smooth (discontinuous) solution features resulting from immersing a thin structure in a fluid. © 2010 Elsevier Ltd. All rights reserved. |
| http://hdl.handle.net/10993/11162 |
| 10.1016/j.compstruc.2010.07.006 |
