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Consistent Particle Method simulation of solitary wave impinging on and overtopping a seawall

Min Luo Orcid Logo, Dominic Reeve Orcid Logo, Songdong Shao, Harshinie Karunarathna Orcid Logo, Pengzhi Lin, Huayang Cai

Engineering Analysis with Boundary Elements, Volume: 103, Pages: 160 - 171

Swansea University Authors: Min Luo Orcid Logo, Dominic Reeve Orcid Logo, Harshinie Karunarathna Orcid Logo

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DOI (Published version): 10.1016/j.enganabound.2019.03.012

Abstract

Tsunamis are among the most destructive natural hazards and can cause massive damage to the coastal communities. This paper presents a first numerical study on the tsunami-like solitary wave impinging and overtopping based on the mesh-free Consistent Particle Method (CPM). The distinct feature of CP...

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Published in: Engineering Analysis with Boundary Elements
ISSN: 0955-7997
Published: 2019
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URI: https://cronfa.swan.ac.uk/Record/cronfa49781
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spelling 2022-11-15T16:35:05.7609463 v2 49781 2019-03-28 Consistent Particle Method simulation of solitary wave impinging on and overtopping a seawall 91e3463c73c6a9d1f5c025feebe4ad0f 0000-0002-6688-9127 Min Luo Min Luo true false 3e76fcc2bb3cde4ddee2c8edfd2f0082 0000-0003-1293-4743 Dominic Reeve Dominic Reeve true false 0d3d327a240d49b53c78e02b7c00e625 0000-0002-9087-3811 Harshinie Karunarathna Harshinie Karunarathna true false 2019-03-28 GENG Tsunamis are among the most destructive natural hazards and can cause massive damage to the coastal communities. This paper presents a first numerical study on the tsunami-like solitary wave impinging and overtopping based on the mesh-free Consistent Particle Method (CPM). The distinct feature of CPM is that it computes the spatial derivatives in a way consistent with the Taylor series expansion and hence achieves good numerical consistency and accuracy. This largely alleviates the spurious pressure fluctuation that is a key issue for the particle method. Validated by the benchmark example of solitary wave impact on a seawall, the CPM model is shown to be able to capture the highly deformed breaking wave and the impact pressure associated with wave impinging and overtopping. Using the numerical model, a parametric study of the effect of seawall cross-sectional geometry on the characteristics of wave overtopping is conducted. It is found that a higher water level can lead to much more intensive overtopping volume and kinetic energy of the overtopping flow, which implies that the coastal areas are at higher risk as the sea level rises. For the purpose of engineering interest, a simple and practical way to estimate the intensity of a real tsunami is presented in terms of the volume and energy of the bulge part of the incident wave. Journal Article Engineering Analysis with Boundary Elements 103 160 171 0955-7997 Consistent Particle Method, Solitary wave, Wave impinging, Overtopping 31 12 2019 2019-12-31 10.1016/j.enganabound.2019.03.012 COLLEGE NANME General Engineering COLLEGE CODE GENG Swansea University 2022-11-15T16:35:05.7609463 2019-03-28T09:32:50.5061572 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering Min Luo 0000-0002-6688-9127 1 Dominic Reeve 0000-0003-1293-4743 2 Songdong Shao 3 Harshinie Karunarathna 0000-0002-9087-3811 4 Pengzhi Lin 5 Huayang Cai 6 0049781-29032019150434.pdf luo2019.pdf 2019-03-29T15:04:34.6200000 Output 2140000 application/pdf Accepted Manuscript true 2020-03-23T00:00:00.0000000 true eng
title Consistent Particle Method simulation of solitary wave impinging on and overtopping a seawall
spellingShingle Consistent Particle Method simulation of solitary wave impinging on and overtopping a seawall
Min Luo
Dominic Reeve
Harshinie Karunarathna
title_short Consistent Particle Method simulation of solitary wave impinging on and overtopping a seawall
title_full Consistent Particle Method simulation of solitary wave impinging on and overtopping a seawall
title_fullStr Consistent Particle Method simulation of solitary wave impinging on and overtopping a seawall
title_full_unstemmed Consistent Particle Method simulation of solitary wave impinging on and overtopping a seawall
title_sort Consistent Particle Method simulation of solitary wave impinging on and overtopping a seawall
author_id_str_mv 91e3463c73c6a9d1f5c025feebe4ad0f
3e76fcc2bb3cde4ddee2c8edfd2f0082
0d3d327a240d49b53c78e02b7c00e625
author_id_fullname_str_mv 91e3463c73c6a9d1f5c025feebe4ad0f_***_Min Luo
3e76fcc2bb3cde4ddee2c8edfd2f0082_***_Dominic Reeve
0d3d327a240d49b53c78e02b7c00e625_***_Harshinie Karunarathna
author Min Luo
Dominic Reeve
Harshinie Karunarathna
author2 Min Luo
Dominic Reeve
Songdong Shao
Harshinie Karunarathna
Pengzhi Lin
Huayang Cai
format Journal article
container_title Engineering Analysis with Boundary Elements
container_volume 103
container_start_page 160
publishDate 2019
institution Swansea University
issn 0955-7997
doi_str_mv 10.1016/j.enganabound.2019.03.012
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 Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering
document_store_str 1
active_str 0
description Tsunamis are among the most destructive natural hazards and can cause massive damage to the coastal communities. This paper presents a first numerical study on the tsunami-like solitary wave impinging and overtopping based on the mesh-free Consistent Particle Method (CPM). The distinct feature of CPM is that it computes the spatial derivatives in a way consistent with the Taylor series expansion and hence achieves good numerical consistency and accuracy. This largely alleviates the spurious pressure fluctuation that is a key issue for the particle method. Validated by the benchmark example of solitary wave impact on a seawall, the CPM model is shown to be able to capture the highly deformed breaking wave and the impact pressure associated with wave impinging and overtopping. Using the numerical model, a parametric study of the effect of seawall cross-sectional geometry on the characteristics of wave overtopping is conducted. It is found that a higher water level can lead to much more intensive overtopping volume and kinetic energy of the overtopping flow, which implies that the coastal areas are at higher risk as the sea level rises. For the purpose of engineering interest, a simple and practical way to estimate the intensity of a real tsunami is presented in terms of the volume and energy of the bulge part of the incident wave.
published_date 2019-12-31T04:01:00Z
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score 11.013731

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