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

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Fluid-Structure Interaction

Part of the book series: Lecture Notes in Computational Science and Engineering ((LNCSE,volume 53))

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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Author information

Authors and Affiliations

  1. Department of Flow, Heat and Combustion Mechanics, Ghent University, St.-Pietersnieuwstraat 41, B-9000, Ghent, Belgium

    Jan Vierendeels

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  1. Jan Vierendeels
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Editor information

Editors and Affiliations

  1. Technische Universität München Institut für Informatik, Boltzmannstraße 3, 85748, Garching, Germany

    Hans-Joachim Bungartz

  2. Fachgebiet Numerische Berechnungsverfahren im Maschinenbau, Technische Universität Darmstadt, Petersenstraße 30, 64287, Darmstadt, Germany

    Michael Schäfer

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© 2006 Springer

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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. https://doi.org/10.1007/3-540-34596-5_1

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