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International Journal for Multiscale Computational Engineering
Facteur d'impact: 1.016 Facteur d'impact sur 5 ans: 1.194 SJR: 0.554 SNIP: 0.68 CiteScore™: 1.18

ISSN Imprimer: 1543-1649
ISSN En ligne: 1940-4352

International Journal for Multiscale Computational Engineering

DOI: 10.1615/IntJMultCompEng.v4.i2.60
pages 255-263

Implicit and Explicit Higher-Order Time Integration Schemes for Fluid-Structure Interaction Computations

Alexander van Zuijlen
Delft University of Technology, Faculty of Aerospace Engineering, P.O. Box 5058,2600GB, The Netherlands
Hester Bijl
TU Delft, Kluyverweg 1 (10.18), 2629 HS Delft, The Netherlands

RÉSUMÉ

In this paper, higher-order time integration schemes are applied to fluid-structure interaction (FSI) simulations. For a given accuracy, we investigate the efficiency of higher-order time integration schemes compared to lower-order methods. In the partitioned FSI simulations on a one-dimensional piston problem, a mixed implicit/explicit (IMEX) time integration scheme is employed: the implicit scheme is used to integrate the fluid and structural dynamics, whereas an explicit Runge-Kutta scheme integrates the coupling terms. The resulting IMEX scheme retains the order of the implicit and explicit schemes. In the IMEX scheme considered, the implicit scheme consists of an explicit first stage, singly diagonally implicit Runge-Kutta scheme, which is a multistage, L-stable scheme.


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