Reference : Space-time shear-slip mesh update method for fluid-structure interaction problems
Scientific congresses, symposiums and conference proceedings : Unpublished conference
Engineering, computing & technology : Civil engineering
Engineering, computing & technology : Mechanical engineering
Computational Sciences
Space-time shear-slip mesh update method for fluid-structure interaction problems
Schippke, Henning mailto [Technische Universität Braunschweig, Institut für Statik, Beethovenstraße 51, D-38106 Braunschweig, Germany]
Zilian, Andreas mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit >]
6th European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS 2012
10 September 2012 through 14 September 2012
[en] Fluid-structure interaction; Mesh movement; Moving boundaries; Space-time finite element method
[en] Space-time discretisations of physical problems involving moving and deforming bodies, boundaries and interfaces have been shown to offer advantageous properties while being methodologically uniform and flexible. Well-known phenomena which are ideally suited to be analysed by space-time methods, are fluid-structure interaction problems in general as well as fluid flows with subdomain phase boundaries or immersed moving objects. In this contribution a short overview of existing mesh- moving techniques is given within the framework of finite element discretisations of the incompressible Navier-Stokes equations in space and time. The investigation is based on a velocity-pressure formulation on the deforming space-time domain in combination with a GLS stabilisation of the balance of momentum as well as the conservation equation of mass. A modification of the shear-slip mesh update method in the framework of space-time finite element discretisation is presented leading to a continuous space-time mesh in the shear-slip layer. The modified mesh moving technique is applied to the classical flow situation of Poiseuille flow incorporating a rotating space-time fluid mesh. Its conservation properties and its quality regarding the approximated solution on moving and deforming meshes are investigated.
Deutsche Forschungsgemeinschaft DFG
ZI 1230-2/1

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