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Numerical benchmarking of fluid–structure interaction: An isogeometric finite element approach

Numerical benchmarking of fluid–structure interaction: An isogeometric finite element approach

Category
Journal publication
Abstract
In this paper we describe and evaluate an isogeometric finite element program, IFEM-FSI, for doing coupled fluid–structure interaction simulations. We investigate the role played by employing higher polynomial orders and higher regularity for solving a well known benchmark problem for flow past a circular cylinder with an attached flexible bar at Reynolds number Re=100. Furthermore, we investigate the sensitivity to resolution in the fluid mesh as well as stiffness distribution in the mesh movement algorithm. Mesh quality is also assessed. Our simulations indicate that quadratic and cubic spline elements give better estimation of lift, drag and displacements than linear spline elements
Client
  • Norges forskningsråd / 193823
  • Norges forskningsråd / 216465
  • Notur/NorStore / NN9322K/1589
Language
English
Author(s)
Affiliation
  • Norwegian University of Science and Technology
  • SINTEF Digital / Mathematics and Cybernetics
Year
2016
Published in
Ocean Engineering
ISSN
0029-8018
Volume
124
Page(s)
324 - 339