A study of hydroelastic fluid-structure interaction with application to immersed cantilevers

Johan Lorentzon

Research output: ThesisDoctoral Thesis (compilation)

144 Downloads (Pure)

Abstract

This study presents an approach for partitioned fluid-structure interaction (FSI) applied to large structural deformations, where an incompressible turbulent solver is combined with a structural solver. The implementation is based upon two different open-source libraries by using MPI as a parallel communication protocol, the packages deal.II and OpenFOAM. FSI is achieved through a strongly-coupled scheme. The solver has been validated against cases with a submerged cantilever in a channel flow to which experiments, numerical calculations and theoretical solutions are available. The verification of the procedure is performed by using a solid-solid interaction (SSI) study.The solver has proven to be robust and has the same parallel efficiency as the fluid and the solid solver stand-alone.
Translated title of the contributionEn studie i hydroelastisk fluid-struktur interaktion med tillämpning på nedsänkta balkar
Original languageEnglish
QualificationDoctor
Supervisors/Advisors
  • Austrell, Per Erik, Supervisor
  • Revstedt, Johan, Supervisor
  • Veryazov, Valera, Supervisor
  • Malmqvist, Per-Åke, Supervisor
Award date2023 Dec 1
Place of PublicationMedia Tryck
Publisher
ISBN (Print)978-91-8096-006-9
ISBN (electronic) 978-91-8096-007-6
Publication statusPublished - 2023 Nov 7

Bibliographical note

Defence details
Date: 2023-12-01
Time: 09:00
Place: KC:B
External reviewer(s)
Name: Breuer, Michael
Title: Univ.-Prof. Dr.–Ing.
Affiliation: Helmut Schmidt University, Hamburg
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Subject classification (UKÄ)

  • Fluid Mechanics

Free keywords

  • Partitioned Fluid-Structure
  • Blocked Gauss-Seidel
  • Jacobian-free Newton-Krylov methods
  • Incompressible fluid
  • Finite Strain
  • Total Lagrangian
  • Arbitrary Lagrange Euler method
  • Vector acceleration

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