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The Lagrange-Galerkin method for fluid-structure interaction problems

Abstract : In this paper, we consider a Lagrange-Galerkin scheme to approximate a two-dimensional fluid-structure interaction problem. The equations of the system are the Navier-Stokes equations in the fluid part, coupled with ordinary differential equations for the dynamics of the solid. We are interested in studying numerical schemes based on the use of the characteristics method for rigid and deformable solids. The schemes are based on a global weak formulation involving only terms defined on the whole fluid-solid domain. Convergence results are stated for both semi and fully discrete schemes. This article reviews known results for rigid solid along with some new results on deformable structure yet to be published.
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https://hal.inria.fr/hal-00906490
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Submitted on : Tuesday, November 19, 2013 - 9:08:28 PM
Last modification on : Tuesday, March 2, 2021 - 5:12:05 PM
Long-term archiving on: : Saturday, April 8, 2017 - 1:48:46 AM

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Jorge San Martín, Jean-François Scheid, Loredana Smaranda. The Lagrange-Galerkin method for fluid-structure interaction problems. Boundary Value Problems, SpringerOpen, 2013, 2013 (1), pp.15. ⟨hal-00906490⟩

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