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Nonlinear Fluid-Structure Interaction: a Partitioned Approach and its Application Through Component Technology

Abstract : A partitioned approach is studied to solve strongly coupled nonlinear fluid-structure interaction problems. The stability, convergence and performance of explicit and implicit coupling algorithms are explored. The partitioned approach allows to re-use existing codes in a more general context. One purpose of this work is to be able to couple them as black-boxes. To that end, the scientific software component framework CTL is considered. Therefore a fluid and a structure component based on existing software are developed and coupled with a master code approach. Computational performance of different remote calls and parallel implementation of components are also depicted herein. The re-use of existing software allows to couple advanced models developed for both sub-problems. In this work, the structure part is solved by the Finite Element Method, with the possibility to use different non-linear and large deformation behaviors. For the fluid part, examples modeled with an Arbitrary Lagrangian Eulerian formulation are considered, solved with a Finite Volume Method. The models used are first transient incompressible flows described by the Navier-Stokes equation, then free surface flows. With the latter, the impact of sloshing and breaking waves on model structures can be computed.
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https://pastel.archives-ouvertes.fr/tel-00453394
Contributor : Christophe Kassiotis <>
Submitted on : Thursday, February 4, 2010 - 3:07:58 PM
Last modification on : Tuesday, October 6, 2020 - 8:22:04 AM
Long-term archiving on: : Thursday, October 18, 2012 - 2:35:11 PM

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  • HAL Id : tel-00453394, version 1

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Christophe Kassiotis. Nonlinear Fluid-Structure Interaction: a Partitioned Approach and its Application Through Component Technology. Engineering Sciences [physics]. Université Paris-Est, 2009. English. ⟨tel-00453394v1⟩

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