Paper published in a journal (Scientific congresses, symposiums and conference proceedings)
Finite element method for strongly-coupled systems of fluid-structure interaction with application to granular flow in silos
Reinstädler, S.; Zilian, Andreas; Dinkler, D.
2011 • In Proceedings of the 4th International Conference on Computational Methods for Coupled Problems in Science and Engineering, COUPLED PROBLEMS 2011, p. 837-849
[en] A monolithic approach to fluid-structure interactions based on the space-time finite element method (STFEM) is presented. The method is applied to the investigation of stress states in silos filled with granular material during discharge. The thin-walled siloshell is modeled in a continuum approach as elastic solid material, whereas the flowing granular material is described by an enhanced viscoplastic non-Newtonian fluid model. The weak forms of the governing equations are discretized by STFEM for both solid and fluid domain. To adapt the matching mesh nodes of the fluid domain to the structural deformations, a mesh-moving scheme using a neo-Hookean pseudo-solid is applied. The finite element approximation of non-smooth solution characteristics is enhanced by the extended finite element method (XFEM). The proposed methodology is applied to the 4D (space-time) investigation of deformation-dependent loading conditions during silo discharge.
Disciplines :
Civil engineering
Author, co-author :
Reinstädler, S.; Institute for Structural Analysis, TU Braunschweig, Beethovenstr. 51, 38106 Braunschweig, Germany
Zilian, Andreas ; University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit
Dinkler, D.; Institute for Structural Analysis, TU Braunschweig, Beethovenstr. 51, 38106 Braunschweig, Germany
Language :
English
Title :
Finite element method for strongly-coupled systems of fluid-structure interaction with application to granular flow in silos
Publication date :
2011
Event name :
4th International Conference on Computational Methods for Coupled Problems in Science and Engineering, COUPLED PROBLEMS 2011
Event date :
20 June 2011 through 22 June 2011
Audience :
International
Journal title :
Proceedings of the 4th International Conference on Computational Methods for Coupled Problems in Science and Engineering, COUPLED PROBLEMS 2011