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A second-order accurate non-intrusive staggered scheme for the interaction of ultra-lightweight rigid bodies with fluid flow / Chennakesava Kadapa

Ocean Engineering, Volume: 217, Start page: 107940

Swansea University Author: Chennakesava, Kadapa

  • Accepted Manuscript under embargo until: 14th September 2021

Abstract

This paper presents a staggered scheme with second-order temporal accuracy for fluid-structure interaction problems involving ultra-lightweight rigid bodies. The staggered scheme is based on the Dirichlet-Neumann coupling and is non-intrusive. First, the spectral properties of the staggered scheme a...

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Published in: Ocean Engineering
ISSN: 0029-8018
Published: Elsevier BV 2020
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URI: https://cronfa.swan.ac.uk/Record/cronfa55202
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spelling 2020-11-05T14:08:40.6784028 v2 55202 2020-09-18 A second-order accurate non-intrusive staggered scheme for the interaction of ultra-lightweight rigid bodies with fluid flow de01927f8c2c4ad9dcc034c327ac8de1 0000-0001-6092-9047 Chennakesava Kadapa Chennakesava Kadapa true false 2020-09-18 SCS This paper presents a staggered scheme with second-order temporal accuracy for fluid-structure interaction problems involving ultra-lightweight rigid bodies. The staggered scheme is based on the Dirichlet-Neumann coupling and is non-intrusive. First, the spectral properties of the staggered scheme are studied and also compared against the monolithic scheme using a linear model problem. Later, the suitability and effectiveness of the staggered scheme for problems involving incompressible flows and lightweight rigid solids are illustrated by using the examples of galloping of a square cylinder and lock-in of a circular cylinder for mass-ratio values as low as 0.01. This is the first time in the literature flow-induced vibrations of rigid bodies with such low mass ratio values are successfully simulated using a staggered scheme. Two different fluid solvers are considered to illustrate the non-intrusive nature of the proposed scheme. Guidelines for choosing the relaxation parameter are also provided. With its iteration-free nature and with a single (relaxation) parameter, the proposed staggered scheme renders itself as an accurate and computationally efficient scheme for fluid-rigid body interaction problems, including those involving lightweight structures. Journal Article Ocean Engineering 217 107940 Elsevier BV 0029-8018 Fluid–structure interaction; Partitioned approach; Staggered scheme; Added-mass; Lightweight structures 1 12 2020 2020-12-01 10.1016/j.oceaneng.2020.107940 COLLEGE NANME Computer Science COLLEGE CODE SCS Swansea University 2020-11-05T14:08:40.6784028 2020-09-18T09:07:04.5826953 College of Science Computer Science Chennakesava Kadapa 0000-0001-6092-9047 1 Under embargo Under embargo 2020-09-18T09:21:01.6363713 Output 1279071 application/pdf Accepted Manuscript true 2021-09-14T00:00:00.0000000 ©2020 All rights reserved. All article content, except where otherwise noted, is licensed under a Creative Commons Attribution Non-Commercial No Derivatives License (CC-BY-NC-ND) true eng
title A second-order accurate non-intrusive staggered scheme for the interaction of ultra-lightweight rigid bodies with fluid flow
spellingShingle A second-order accurate non-intrusive staggered scheme for the interaction of ultra-lightweight rigid bodies with fluid flow
Chennakesava, Kadapa
title_short A second-order accurate non-intrusive staggered scheme for the interaction of ultra-lightweight rigid bodies with fluid flow
title_full A second-order accurate non-intrusive staggered scheme for the interaction of ultra-lightweight rigid bodies with fluid flow
title_fullStr A second-order accurate non-intrusive staggered scheme for the interaction of ultra-lightweight rigid bodies with fluid flow
title_full_unstemmed A second-order accurate non-intrusive staggered scheme for the interaction of ultra-lightweight rigid bodies with fluid flow
title_sort A second-order accurate non-intrusive staggered scheme for the interaction of ultra-lightweight rigid bodies with fluid flow
author_id_str_mv de01927f8c2c4ad9dcc034c327ac8de1
author_id_fullname_str_mv de01927f8c2c4ad9dcc034c327ac8de1_***_Chennakesava, Kadapa
author Chennakesava, Kadapa
author2 Chennakesava Kadapa
format Journal article
container_title Ocean Engineering
container_volume 217
container_start_page 107940
publishDate 2020
institution Swansea University
issn 0029-8018
doi_str_mv 10.1016/j.oceaneng.2020.107940
publisher Elsevier BV
college_str College of Science
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hierarchy_parent_title College of Science
department_str Computer Science{{{_:::_}}}College of Science{{{_:::_}}}Computer Science
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description This paper presents a staggered scheme with second-order temporal accuracy for fluid-structure interaction problems involving ultra-lightweight rigid bodies. The staggered scheme is based on the Dirichlet-Neumann coupling and is non-intrusive. First, the spectral properties of the staggered scheme are studied and also compared against the monolithic scheme using a linear model problem. Later, the suitability and effectiveness of the staggered scheme for problems involving incompressible flows and lightweight rigid solids are illustrated by using the examples of galloping of a square cylinder and lock-in of a circular cylinder for mass-ratio values as low as 0.01. This is the first time in the literature flow-induced vibrations of rigid bodies with such low mass ratio values are successfully simulated using a staggered scheme. Two different fluid solvers are considered to illustrate the non-intrusive nature of the proposed scheme. Guidelines for choosing the relaxation parameter are also provided. With its iteration-free nature and with a single (relaxation) parameter, the proposed staggered scheme renders itself as an accurate and computationally efficient scheme for fluid-rigid body interaction problems, including those involving lightweight structures.
published_date 2020-12-01T04:10:18Z
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score 10.76342