2021-10-28T20:19:43Z
https://oa.upm.es/cgi/oai2
oai:oa.upm.es:6764
2016-04-20T15:56:32Z
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747970653D61727469636C65
Partitioned simulation of the interaction between an elastic structure and free surface flow
Degroote, Joris
Souto Iglesias, Antonio
Van Paepegem, Wim
Annerel, Sebastiaan
Bruggeman, Peter
Vierendeel, Jan
Naval Engineering
Physics
Currently, the interaction between free surface flow and an elastic structure is simulated with monolithic codes which calculate the deformation of the structure and the liquidâ€“gas flow simultaneously. In this work, this interaction is calculated in a partitioned way with a separate flow solver and a separate structural solver using the interface quasi-Newton algorithm with approximation for the inverse of the Jacobian from a least-squares model (IQN-ILS). The interaction between an elastic beam and a sloshing liquid in a rolling tank is calculated and the results agree well with experimental data. Subsequently, the impact of both a rigid cylinder and a flexible composite cylinder on a water surface is simulated to assess the effect of slamming on the components of certain wave-energy converters. The impact pressure on the bottom of the rigid cylinder is nearly twice as high as on the flexible cylinder, which emphasizes the need for fluidâ€“structure interaction calculations in the design process of these wave-energy converters. For both the rolling tank simulations and the impact simulations, grid refinement is performed and the IQN-ILS algorithm requires the same number of iterations on each grid. The simulations on the coarse grid are also executed using Gauss-Seidel coupling iterations with Aitken relaxation which requires significantly more coupling iterations per time step.
E.T.S.I. Navales (UPM)
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
2010-01
info:eu-repo/semantics/article
Article
Computer Methods in Applied Mechanics and Engineering, ISSN 0045-7825, 2010-01, Vol. 199, No. 33-36
PeerReviewed
application/pdf
eng
http://www.elsevier.com
info:eu-repo/semantics/openAccess
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.cma.2010.02.019
http://oa.upm.es/6764/