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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

Kategori
Vitenskapelig artikkel
Sammendrag
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
Oppdragsgiver
  • Notur/NorStore / NN9322K/1589
  • Research Council of Norway (RCN) / 193823
  • Research Council of Norway (RCN) / 216465
Språk
Engelsk
Forfatter(e)
Institusjon(er)
  • Norges teknisk-naturvitenskapelige universitet
  • SINTEF Digital / Mathematics and Cybernetics
År
Publisert i
Ocean Engineering
ISSN
0029-8018
Forlag
Elsevier
Årgang
124
Side(r)
324 - 339