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Un modèle d'interaction fluide-structure en régime compressible faible Mach

Abstract : This study deals with the modeling and simulation of fluid-structure interactions in a compressible framework for inviscid flows. A monolithic approach has been chosen for treating the coupling between the fluid and the solid through a single equation that solves the motion of both simultaniously. An additionnal term in the momentum equation allows to take into account the obstacle in the flow. A weak formulation is derived from previous similar works that confirms the unification problem is mathematically well-posed, especially on the interface. The numerical procedure relies on a time-splitting method similar to prediction-correction methods for incompressible flows. Some numerical examples illustrate this work and allows to conclude on the feasibility of this fluid-structure interaction model for compressible flows.
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https://tel.archives-ouvertes.fr/tel-02025511
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Submitted on : Tuesday, February 19, 2019 - 4:55:07 PM
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Thomas Altazin. Un modèle d'interaction fluide-structure en régime compressible faible Mach. Mécanique des matériaux [physics.class-ph]. Université de Toulon, 2017. Français. ⟨NNT : 2017TOUL0021⟩. ⟨tel-02025511⟩

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