An evaluation of quasi-Newton methods for application to FSI problems involving free surface flow and solid body contact

dc.contributor.authorBogaers, Alfred Edward Jules
dc.contributor.authorKok, Schalk
dc.contributor.authorReddy, B. Dayanand, 1953-
dc.contributor.authorFranz, Thierry
dc.date.accessioned2016-09-21T06:41:41Z
dc.date.issued2016-09
dc.description.abstractThe design of coupling algorithms for partitioned fluid-structure interaction (FSI) simulations are typically validated on FSI problems involving large deformations of thin elastic structures with large added mass ratios. A large number of FSI problems may however feature additional internal non-linearities, examples of which include problems with free surface ow or FSI problems involving contact between two or more solid bodies. In this paper we aim to demonstrate the applicability of quasi-Newton methods when applied to these classes of problems. The analyses will focus on a comparison between two promising families of quasi-Newton methods, namely the 'quasi-Newton least squares' (QN-LS) family of methods and the 'multi-vector iteratively updated quasi-Newton' (MVQN) method. Both of these families of quasi-Newton methods construct approximations of the FSI system Jacobians using only iteratively obtained interface information, and can therefore be applied to black-box subdomain solvers. We will further attempt to quantify the ability of these QN methods to adequately approximate these additional non-linearities based on the form of the chosen interface equations.en_ZA
dc.description.departmentMechanical and Aeronautical Engineeringen_ZA
dc.description.embargo2017-09-30
dc.description.librarianhb2016en_ZA
dc.description.urihttp://www.elsevier.com/locate/compstrucen_ZA
dc.identifier.citationBogaers, AEJ, Kok, S, Reddy, BD & Franz, T 2016, 'An evaluation of quasi-Newton methods for application to FSI problems involving free surface flow and solid body contact', Computers and Structures, vol. 173, pp. 71-83en_ZA
dc.identifier.issn0045-7949
dc.identifier.other10.1016/j.compstruc.2016.05.018
dc.identifier.urihttp://hdl.handle.net/2263/56768
dc.language.isoenen_ZA
dc.publisherElsevieren_ZA
dc.rights© 2016 Elsevier Ltd. All rights reserved. Notice : this is the author’s version of a work that was accepted for publication in Computers and Structures. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. A definitive version was subsequently published in Computers and Structures, vol. 173, pp. 71-83, 2016. doi : 10.1016/j.compstruc.2016.05.018.en_ZA
dc.subjectQuasi-Newton methodsen_ZA
dc.subjectPartitioned FSIen_ZA
dc.subjectFree surface flowen_ZA
dc.subjectSolid body contacten_ZA
dc.subjectFluid-structure interaction (FSI)en_ZA
dc.subjectQuasi-Newton least squares (QN-LS)en_ZA
dc.subject.otherEngineering, built environment and information technology articles SDG-09
dc.subject.otherSDG-09: Industry, innovation and infrastructure
dc.subject.otherEngineering, built environment and information technology articles SDG-07
dc.subject.otherSDG-07: Affordable and clean energy
dc.subject.otherEngineering, built environment and information technology articles SDG-11
dc.subject.otherSDG-11: Sustainable cities and communities
dc.titleAn evaluation of quasi-Newton methods for application to FSI problems involving free surface flow and solid body contacten_ZA
dc.typePostprint Articleen_ZA

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