Coupling of Incompressible Free-Surface Flow, Acoustic Fluid and Flexible Structure Via a Modal Basis

Florian Toth*, Manfred Kaltenbacher

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

Abstract

Free surface flow of incompressible liquids interacts with compressible gases and flexible structures in applications like liquid tanks or air chamber supported floating platforms. After briefly describing the physical modeling of the coupled system, we suggest a procedure for model order reduction based on the modal bases of the un-coupled domains. To again couple the different physical domains, one needs to assemble the coupling conditions on the interfaces between gas, liquid, and structure domains in terms of the modal coordinates. We demonstrate the effectiveness of the model order reduction by applying it to a geometrically simple but strongly coupled tank system, for which we compute the sloshing modes.

Original languageEnglish
Title of host publicationIUTAM Bookseries
PublisherSpringer
Pages141-150
Number of pages10
DOIs
Publication statusPublished - 2020
Externally publishedYes

Publication series

NameIUTAM Bookseries
Volume36
ISSN (Print)1875-3507
ISSN (Electronic)1875-3493

Keywords

  • Acoustics
  • Flexible structure
  • Free surface waves
  • Modal coupling

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Automotive Engineering
  • Materials Science(all)
  • Aerospace Engineering
  • Acoustics and Ultrasonics
  • Mechanics of Materials
  • Mechanical Engineering

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