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Extrapolation methods for accelerating unsteady partitioned fluid-structure interaction simulations

Sachs, Stephen and Streitenberger, M. and Sternel, D. C. and Schäfer, M. (2011):
Extrapolation methods for accelerating unsteady partitioned fluid-structure interaction simulations.
In: The International Journal of Multiphysics, Multi-Science Publishing, pp. 287-298, 5, (4), ISSN 1750-9548, [Online-Edition: https://multiscience.metapress.com/content/5463623p73177383/...],
[Article]

Abstract

The advantages of an unsteady implicit partitioned Fluid-Structure Interaction Scheme are; especially for large time step sizes; accompanied by a high number of inner iterations needed. This work investigates the use of extrapolation techniques in between time steps to obtain a smaller number of inner iterations. In contrast to previous works not only the structural displacement but also the fluid field variables are considered for extrapolation. The different extrapolation approaches are compared within a numerical benchmark.

Item Type: Article
Erschienen: 2011
Creators: Sachs, Stephen and Streitenberger, M. and Sternel, D. C. and Schäfer, M.
Title: Extrapolation methods for accelerating unsteady partitioned fluid-structure interaction simulations
Language: English
Abstract:

The advantages of an unsteady implicit partitioned Fluid-Structure Interaction Scheme are; especially for large time step sizes; accompanied by a high number of inner iterations needed. This work investigates the use of extrapolation techniques in between time steps to obtain a smaller number of inner iterations. In contrast to previous works not only the structural displacement but also the fluid field variables are considered for extrapolation. The different extrapolation approaches are compared within a numerical benchmark.

Journal or Publication Title: The International Journal of Multiphysics
Volume: 5
Number: 4
Publisher: Multi-Science Publishing
Divisions: 16 Department of Mechanical Engineering > Institute of Numerical Methods in Mechanical Engineering (FNB)
16 Department of Mechanical Engineering
Zentrale Einrichtungen
Exzellenzinitiative
Exzellenzinitiative > Graduate Schools > Graduate School of Computational Engineering (CE)
Exzellenzinitiative > Graduate Schools
Date Deposited: 22 Mar 2012 10:30
Official URL: https://multiscience.metapress.com/content/5463623p73177383/...
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