Implicit Coupling of Partitioned Fluid-Structure Interaction Solvers using Reduced-Order Models

  • Jan Vierendeels
Conference paper

DOI: 10.1007/3-540-34596-5_1

Volume 53 of the book series Lecture Notes in Computational Science and Engineering (LNCSE)
Cite this paper as:
Vierendeels J. (2006) Implicit Coupling of Partitioned Fluid-Structure Interaction Solvers using Reduced-Order Models. In: Bungartz HJ., Schäfer M. (eds) Fluid-Structure Interaction. Lecture Notes in Computational Science and Engineering, vol 53. Springer, Berlin, Heidelberg

Abstract

In this contribution a powerful technique is described which allows the strong coupling of partitioned solvers in fluid-structure interaction (FSI) problems. The method allows the use of a black box fluid and structural solver because it builds up a reduced order model of the fluid and structural problem during the coupling process. Each solution of the fluid/structural solver in the coupling process can be seen as a sensitivity response of an applied displacement/pressure mode. The applied modes and their responses are used to build up the reduced order model. The method is applied on the flow in the left ventricle during the filling and emptying phase. Two to three modes are needed, depending on the moment in the heart cycle, to reduce the residual by four orders of magnitude and to achieve a fully coupled solution at each time step.

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Copyright information

© Springer 2006

Authors and Affiliations

  • Jan Vierendeels
    • 1
  1. 1.Department of Flow, Heat and Combustion MechanicsGhent UniversityGhentBelgium