Stability and error estimates of a linear and partitioned finite element method approximating nonlinear fluid-structure interactions

Fuente: arXiv
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Auteurs principaux: She, Bangwei, Tian, Tian, Tuma, Karel
Format: Preprint
Publié: 2026
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author She, Bangwei
Tian, Tian
Tuma, Karel
author_facet She, Bangwei
Tian, Tian
Tuma, Karel
contents We propose and analyze a linear and partitioned finite element method for fluid-shell interactions under the arbitrary Lagrangian-Eulerian (ALE) framework. We adopt the P1-bubble/P1/P1 elements for the fluid velocity, pressure, and structure velocity, respectively. We show the stability and error estimates of the scheme without assuming infinitesimal structural deformation nor neglecting fluid convection effects. The theoretical convergence rate is further corroborated by numerical experiments.
format Preprint
id arxiv_https___arxiv_org_abs_2601_02847
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Stability and error estimates of a linear and partitioned finite element method approximating nonlinear fluid-structure interactions
She, Bangwei
Tian, Tian
Tuma, Karel
Numerical Analysis
35Q30, 76N99, 74F10, 65M12, 65M60
We propose and analyze a linear and partitioned finite element method for fluid-shell interactions under the arbitrary Lagrangian-Eulerian (ALE) framework. We adopt the P1-bubble/P1/P1 elements for the fluid velocity, pressure, and structure velocity, respectively. We show the stability and error estimates of the scheme without assuming infinitesimal structural deformation nor neglecting fluid convection effects. The theoretical convergence rate is further corroborated by numerical experiments.
title Stability and error estimates of a linear and partitioned finite element method approximating nonlinear fluid-structure interactions
topic Numerical Analysis
35Q30, 76N99, 74F10, 65M12, 65M60
url https://arxiv.org/abs/2601.02847