A fictitious domain approach with Lagrange multiplier for fluid-structure interactions

Daniele Boffi, Lucia Gastaldi

Research output: Contribution to journalArticlepeer-review

26 Scopus citations

Abstract

We study a recently introduced formulation for fluid-structure interaction problems which makes use of a distributed Lagrange multiplier in the spirit of the fictitious domain method. The time discretization of the problem leads to a mixed problem for which a rigorous stability analysis is provided. The finite element space discretization is discussed and optimal convergence estimates are proved.
Original languageEnglish (US)
Pages (from-to)711-732
Number of pages22
JournalNumerische Mathematik
Volume135
Issue number3
DOIs
StatePublished - Mar 1 2017
Externally publishedYes

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