Partitioned simulation of the interaction between an elastic structure and free surface flow

Degroote, Joris and Souto Iglesias, Antonio and Van Paepegem, Wim and Annerel, Sebastiaan and Bruggeman, Peter and Vierendeel, Jan (2010). Partitioned simulation of the interaction between an elastic structure and free surface flow. "Computer Methods in Applied Mechanics and Engineering", v. 199 (n. 33-36); pp. 2085-2098. ISSN 0045-7825. https://doi.org/10.1016/j.cma.2010.02.019.

Description

Title: Partitioned simulation of the interaction between an elastic structure and free surface flow
Author/s:
  • Degroote, Joris
  • Souto Iglesias, Antonio
  • Van Paepegem, Wim
  • Annerel, Sebastiaan
  • Bruggeman, Peter
  • Vierendeel, Jan
Item Type: Article
Título de Revista/Publicación: Computer Methods in Applied Mechanics and Engineering
Date: January 2010
ISSN: 0045-7825
Volume: 199
Subjects:
Freetext Keywords: Fluid–structure interaction; Partitioned; Free surface; Volume-of-fluid; Rolling tank; Impact; IQN-ILS; Aitken relaxation
Faculty: E.T.S.I. Navales (UPM)
Department: Enseñanzas Básicas de la Ingeniería Naval [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

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 liquid–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 fluid–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.

More information

Item ID: 6764
DC Identifier: http://oa.upm.es/6764/
OAI Identifier: oai:oa.upm.es:6764
DOI: 10.1016/j.cma.2010.02.019
Official URL: http://www.elsevier.com
Deposited by: Memoria Investigacion
Deposited on: 03 May 2011 08:20
Last Modified: 20 Apr 2016 15:56
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