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Aspects of interface modelling in fluid-structure interaction problems. / MARTINA JOOSTEN

Swansea University Author: MARTINA JOOSTEN

Abstract

Different aspects of computational fluid-structure interaction are considered in this work. A brief introduction to fluid dynamics, structural mechanics and the finite element method is given, followed by an overview of interface modelling and the different solution strategies available for the coup...

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Published: 2011
Institution: Swansea University
Degree level: Doctoral
Degree name: Ph.D
URI: https://cronfa.swan.ac.uk/Record/cronfa42211
first_indexed 2018-08-02T18:54:09Z
last_indexed 2020-09-04T03:03:01Z
id cronfa42211
recordtype RisThesis
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spelling 2020-09-03T08:25:45.9408935 v2 42211 2018-08-02 Aspects of interface modelling in fluid-structure interaction problems. fb619f795d1f94e4460e2783d9b0dd69 MARTINA JOOSTEN MARTINA JOOSTEN true false 2018-08-02 Different aspects of computational fluid-structure interaction are considered in this work. A brief introduction to fluid dynamics, structural mechanics and the finite element method is given, followed by an overview of interface modelling and the different solution strategies available for the coupling of the domains. A number of time integration schemes are explained in detail with a focus on their stability and accuracy properties. A model problem is introduced to investigate the situation where different domains of a coupled problem are solved with different time integration schemes. It is shown that appropriate interpolation of the solution variables at the interface is required to maintain the stability and accuracy properties of the individual time integration schemes. The Gauss-Seidel solution strategy is analysed in detail. Stability limitations are investigated and are shown to be related to the mass ratio between the different domains. Different relaxation strategies are introduced to improve the convergence behaviour. Finally, a number of 2D fluid-structure interaction examples are considered, in order to compare the different solution strategies. E-Thesis Computational physics.;Fluid mechanics. 31 12 2011 2011-12-31 COLLEGE NANME COLLEGE CODE Swansea University Doctoral Ph.D 2020-09-03T08:25:45.9408935 2018-08-02T16:24:28.4485804 Faculty of Science and Engineering School of Engineering and Applied Sciences - Uncategorised MARTINA JOOSTEN 1 0042211-02082018162436.pdf 10797913.pdf 2018-08-02T16:24:36.8270000 Output 13708605 application/pdf E-Thesis true 2018-08-02T00:00:00.0000000 false
title Aspects of interface modelling in fluid-structure interaction problems.
spellingShingle Aspects of interface modelling in fluid-structure interaction problems.
MARTINA JOOSTEN
title_short Aspects of interface modelling in fluid-structure interaction problems.
title_full Aspects of interface modelling in fluid-structure interaction problems.
title_fullStr Aspects of interface modelling in fluid-structure interaction problems.
title_full_unstemmed Aspects of interface modelling in fluid-structure interaction problems.
title_sort Aspects of interface modelling in fluid-structure interaction problems.
author_id_str_mv fb619f795d1f94e4460e2783d9b0dd69
author_id_fullname_str_mv fb619f795d1f94e4460e2783d9b0dd69_***_MARTINA JOOSTEN
author MARTINA JOOSTEN
author2 MARTINA JOOSTEN
format E-Thesis
publishDate 2011
institution Swansea University
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Uncategorised{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Uncategorised
document_store_str 1
active_str 0
description Different aspects of computational fluid-structure interaction are considered in this work. A brief introduction to fluid dynamics, structural mechanics and the finite element method is given, followed by an overview of interface modelling and the different solution strategies available for the coupling of the domains. A number of time integration schemes are explained in detail with a focus on their stability and accuracy properties. A model problem is introduced to investigate the situation where different domains of a coupled problem are solved with different time integration schemes. It is shown that appropriate interpolation of the solution variables at the interface is required to maintain the stability and accuracy properties of the individual time integration schemes. The Gauss-Seidel solution strategy is analysed in detail. Stability limitations are investigated and are shown to be related to the mass ratio between the different domains. Different relaxation strategies are introduced to improve the convergence behaviour. Finally, a number of 2D fluid-structure interaction examples are considered, in order to compare the different solution strategies.
published_date 2011-12-31T04:21:27Z
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score 11.090091

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