Fluid-structure interactions with geometrically nonlinear deformations

Jonathan Boustani, Oliver M.F. Browne, Jonathan F. Wenk, Michael F. Barad, Cetin C. Kiris, Christoph Brehm

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

11 Scopus citations


A numerical method for simulating fluid-structure interaction problems involving large, geometrically nonlinear deformations is presented. In this method, a proven computational fluid dynamics solver based on a higher-order immersed boundary method is coupled with a geometrically nonlinear structural finite element solver. The finite element solver employs the mixed interpolation of tensorial components formulation for shell elements. The implementation of the finite element solver and validation results for geometrically nonlinear test problems are discussed. Details of the coupling approach used to transfer loads and displacements between the fluid dynamic and finite element solvers are also presented. The fully-coupled fluid-structure interaction method is then applied to problems with large, geometrically nonlinear deformations, such as a cylinder with a flexible trailing filament, a hyperelastic bending tower, a compliant disk in a viscous flow, and a waving flag.

Original languageEnglish
Title of host publicationAIAA Scitech 2019 Forum
StatePublished - 2019
EventAIAA Scitech Forum, 2019 - San Diego, United States
Duration: Jan 7 2019Jan 11 2019

Publication series

NameAIAA Scitech 2019 Forum


ConferenceAIAA Scitech Forum, 2019
Country/TerritoryUnited States
CitySan Diego

Bibliographical note

Publisher Copyright:
© 2019 by the American Institute of Aeronautics and Astronautics, Inc. All rights reserved.

ASJC Scopus subject areas

  • Aerospace Engineering


Dive into the research topics of 'Fluid-structure interactions with geometrically nonlinear deformations'. Together they form a unique fingerprint.

Cite this