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Focused wave interactions with floating structures: a blind comparative study

Edward J. Ransley, Scott A. Brown, Martyn Hann, Deborah M. Greaves, Christian Windt, John Ringwood, Josh Davidson, Pal Schmitt, Shiqiang Yan, Junxian X. Wang, Jinghua H. Wang, Qingwei Ma, Zhihua Xie, Giuseppe Giorgi, Jack Hughes, Alison Williams Orcid Logo, Ian Masters Orcid Logo, Zaibin Lin, Hao Chen, Ling Qian, Zhihua Ma, Qiang Chen, Haoyu Ding, Jun Zang, Jennifer van Rij, Yi-Hsiang Yu, Zhaobin Li, Benjamin Bouscasse, Guillaume Ducrozet, Harry Bingham

Proceedings of the Institution of Civil Engineers - Engineering and Computational Mechanics, Volume: 174, Issue: 1, Pages: 46 - 61

Swansea University Authors: Alison Williams Orcid Logo, Ian Masters Orcid Logo

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DOI (Published version): 10.1680/jencm.20.00006

Abstract

The paper presents results from the Collaborative Computational Project in Wave Structure Interaction (CCP-WSI) Blind Test Series 2. Without prior access to the physical data, participants, with numerical methods ranging from low-fidelity linear models to fully non-linear Navier–Stokes (NS) solvers,...

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Published in: Proceedings of the Institution of Civil Engineers - Engineering and Computational Mechanics
ISSN: 1755-0777 1755-0785
Published: Thomas Telford Ltd. 2021
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URI: https://cronfa.swan.ac.uk/Record/cronfa56685
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spelling v2 56685 2021-04-19 Focused wave interactions with floating structures: a blind comparative study cb1b1946eccac3bbf7592d6ab1c4d065 0000-0002-2494-1468 Alison Williams Alison Williams true false 6fa19551092853928cde0e6d5fac48a1 0000-0001-7667-6670 Ian Masters Ian Masters true false 2021-04-19 MECH The paper presents results from the Collaborative Computational Project in Wave Structure Interaction (CCP-WSI) Blind Test Series 2. Without prior access to the physical data, participants, with numerical methods ranging from low-fidelity linear models to fully non-linear Navier–Stokes (NS) solvers, simulate the interaction between focused wave events and two separate, taut-moored, floating structures: a hemispherical-bottomed cylinder and a cylinder with a moonpool. The ‘blind’ numerical predictions for heave, surge, pitch and mooring load, are compared against physical measurements. Dynamic time warping is used to quantify the predictive capability of participating methods. In general, NS solvers and hybrid methods give more accurate predictions; however, heave amplitude is predicted reasonably well by all methods; and a WEC-Sim implementation, with CFD-informed viscous terms, demonstrates comparable predictive capability to even the stronger NS solvers. Large variations in the solutions are observed (even among similar methods), highlighting a need for standardisation in the numerical modelling of WSI problems. Journal Article Proceedings of the Institution of Civil Engineers - Engineering and Computational Mechanics 174 1 46 61 Thomas Telford Ltd. 1755-0777 1755-0785 fluid mechanics hydraulics; hydrodynamics offshore engineering 1 3 2021 2021-03-01 10.1680/jencm.20.00006 COLLEGE NANME Mechanical Engineering COLLEGE CODE MECH Swansea University The CCP-WSI Working Group would like to acknowledge the participants of the CCP-WSI Blind Test Series 2 for their contributions as well as the European Wave and Tidal Energy Conference (EWTEC) 2019 organisers for their support. This work is funded by the Engineering and Physical Sciences Research Council (EPSRC) through projects EP/M022382/1, EP/S000747/1 and EP/P026109/1. This research study was authored in part by the National Renewable Energy Laboratory, operated by Alliance for Sustainable Energy, LLC, for the U.S. Department of Energy (DOE) under contract number DE-AC36-08GO28308. Funding provided by U.S. Department of Energy Office of Energy Efficiency and Renewable Energy. 2022-08-16T13:47:13.2369416 2021-04-19T11:31:11.6222771 College of Engineering Engineering Edward J. Ransley 1 Scott A. Brown 2 Martyn Hann 3 Deborah M. Greaves 4 Christian Windt 5 John Ringwood 6 Josh Davidson 7 Pal Schmitt 8 Shiqiang Yan 9 Junxian X. Wang 10 Jinghua H. Wang 11 Qingwei Ma 12 Zhihua Xie 13 Giuseppe Giorgi 14 Jack Hughes 15 Alison Williams 0000-0002-2494-1468 16 Ian Masters 0000-0001-7667-6670 17 Zaibin Lin 18 Hao Chen 19 Ling Qian 20 Zhihua Ma 21 Qiang Chen 22 Haoyu Ding 23 Jun Zang 24 Jennifer van Rij 25 Yi-Hsiang Yu 26 Zhaobin Li 27 Benjamin Bouscasse 28 Guillaume Ducrozet 29 Harry Bingham 30 56685__19722__4c0056087a52422985f18e2e5e7ed08e.pdf 56685.pdf 2021-04-21T09:10:08.5276084 Output 946259 application/pdf Accepted Manuscript true false eng http://creativecommons.org/licenses/by-nc-nd/4.0/
title Focused wave interactions with floating structures: a blind comparative study
spellingShingle Focused wave interactions with floating structures: a blind comparative study
Alison Williams
Ian Masters
title_short Focused wave interactions with floating structures: a blind comparative study
title_full Focused wave interactions with floating structures: a blind comparative study
title_fullStr Focused wave interactions with floating structures: a blind comparative study
title_full_unstemmed Focused wave interactions with floating structures: a blind comparative study
title_sort Focused wave interactions with floating structures: a blind comparative study
author_id_str_mv cb1b1946eccac3bbf7592d6ab1c4d065
6fa19551092853928cde0e6d5fac48a1
author_id_fullname_str_mv cb1b1946eccac3bbf7592d6ab1c4d065_***_Alison Williams
6fa19551092853928cde0e6d5fac48a1_***_Ian Masters
author Alison Williams
Ian Masters
author2 Edward J. Ransley
Scott A. Brown
Martyn Hann
Deborah M. Greaves
Christian Windt
John Ringwood
Josh Davidson
Pal Schmitt
Shiqiang Yan
Junxian X. Wang
Jinghua H. Wang
Qingwei Ma
Zhihua Xie
Giuseppe Giorgi
Jack Hughes
Alison Williams
Ian Masters
Zaibin Lin
Hao Chen
Ling Qian
Zhihua Ma
Qiang Chen
Haoyu Ding
Jun Zang
Jennifer van Rij
Yi-Hsiang Yu
Zhaobin Li
Benjamin Bouscasse
Guillaume Ducrozet
Harry Bingham
format Journal article
container_title Proceedings of the Institution of Civil Engineers - Engineering and Computational Mechanics
container_volume 174
container_issue 1
container_start_page 46
publishDate 2021
institution Swansea University
issn 1755-0777
1755-0785
doi_str_mv 10.1680/jencm.20.00006
publisher Thomas Telford Ltd.
college_str College of Engineering
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hierarchy_top_id collegeofengineering
hierarchy_top_title College of Engineering
hierarchy_parent_id collegeofengineering
hierarchy_parent_title College of Engineering
department_str Engineering{{{_:::_}}}College of Engineering{{{_:::_}}}Engineering
document_store_str 1
active_str 0
description The paper presents results from the Collaborative Computational Project in Wave Structure Interaction (CCP-WSI) Blind Test Series 2. Without prior access to the physical data, participants, with numerical methods ranging from low-fidelity linear models to fully non-linear Navier–Stokes (NS) solvers, simulate the interaction between focused wave events and two separate, taut-moored, floating structures: a hemispherical-bottomed cylinder and a cylinder with a moonpool. The ‘blind’ numerical predictions for heave, surge, pitch and mooring load, are compared against physical measurements. Dynamic time warping is used to quantify the predictive capability of participating methods. In general, NS solvers and hybrid methods give more accurate predictions; however, heave amplitude is predicted reasonably well by all methods; and a WEC-Sim implementation, with CFD-informed viscous terms, demonstrates comparable predictive capability to even the stronger NS solvers. Large variations in the solutions are observed (even among similar methods), highlighting a need for standardisation in the numerical modelling of WSI problems.
published_date 2021-03-01T13:47:09Z
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