Scattering of Long Waves by Freely Oscillating Submerged Plates

We consider a horizontal, submerged plate in shallow water that is allowed to oscillate in the vertical direction due to the wave loads. The plate is attached to a linear spring and damper to control the oscillations. The focus of the study is on the transformation of the wave field by the submerged...

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Published in:Journal of Offshore Mechanics and Arctic Engineering
Main Authors: Chen, Yongbo, Hayatdavoodi, Masoud, Zhao, Binbin, Ertekin, R. Cengiz
Format: Article in Journal/Newspaper
Language:English
Published: 2024
Subjects:
Online Access:https://discovery.dundee.ac.uk/en/publications/6b4a41e8-fe78-40b5-b713-df652d1d7951
https://doi.org/10.1115/1.4063181
https://discovery.dundee.ac.uk/ws/files/106167424/CHZE_JOMAE_2023_ACCEPTED.pdf
http://www.scopus.com/inward/record.url?scp=85177834032&partnerID=8YFLogxK
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author Chen, Yongbo
Hayatdavoodi, Masoud
Zhao, Binbin
Ertekin, R. Cengiz
author_facet Chen, Yongbo
Hayatdavoodi, Masoud
Zhao, Binbin
Ertekin, R. Cengiz
author_sort Chen, Yongbo
collection Unknown
container_issue 2
container_title Journal of Offshore Mechanics and Arctic Engineering
container_volume 146
description We consider a horizontal, submerged plate in shallow water that is allowed to oscillate in the vertical direction due to the wave loads. The plate is attached to a linear spring and damper to control the oscillations. The focus of the study is on the transformation of the wave field by the submerged oscillating plate. To estimate energy scattering, wave reflection and transmission coefficients are determined from four wave gauges; two placed upwave and two placed downwave of the oscillating plate. The flow is governed by the nonlinear Level I Green-Naghdi (GN) equations, coupled with the equations of the vertical oscillations of the plate. Time series of water surface elevation recorded at gauges upwave and downwave of the plate obtained by the GN model are compared with the available laboratory experiments and other data, and very good agreement is observed. Wave reflection and transmission coefficients are then determined for a range of involved parameters, including wave conditions (wavelength and wave height), initial submergence depth of the plate, plate length, and the spring-damper system attached to the plate. It is found that a submerged oscillating plate can have a remarkable effect on the wave field, and that nonlinearity plays an important role in this wave-structure interaction problem. Discussion is provided on how the wave reflection and transmission coefficients vary with the wave conditions, plate characteristics, initial submergence depth and spring-damper system properties
format Article in Journal/Newspaper
genre Arctic
genre_facet Arctic
id ftunivdundeepure:oai:discovery.dundee.ac.uk:publications/6b4a41e8-fe78-40b5-b713-df652d1d7951
institution Open Polar
language English
op_collection_id ftunivdundeepure
op_doi https://doi.org/10.1115/1.4063181
op_rights info:eu-repo/semantics/openAccess
op_source Chen, Y, Hayatdavoodi, M, Zhao, B & Ertekin, R C 2024, 'Scattering of Long Waves by Freely Oscillating Submerged Plates', Journal of Offshore Mechanics and Arctic Engineering, vol. 146, no. 2, 021201. https://doi.org/10.1115/1.4063181
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spelling ftunivdundeepure:oai:discovery.dundee.ac.uk:publications/6b4a41e8-fe78-40b5-b713-df652d1d7951 2025-06-15T14:16:39+00:00 Scattering of Long Waves by Freely Oscillating Submerged Plates Chen, Yongbo Hayatdavoodi, Masoud Zhao, Binbin Ertekin, R. Cengiz 2024-04 application/pdf https://discovery.dundee.ac.uk/en/publications/6b4a41e8-fe78-40b5-b713-df652d1d7951 https://doi.org/10.1115/1.4063181 https://discovery.dundee.ac.uk/ws/files/106167424/CHZE_JOMAE_2023_ACCEPTED.pdf http://www.scopus.com/inward/record.url?scp=85177834032&partnerID=8YFLogxK eng eng info:eu-repo/semantics/openAccess Chen, Y, Hayatdavoodi, M, Zhao, B & Ertekin, R C 2024, 'Scattering of Long Waves by Freely Oscillating Submerged Plates', Journal of Offshore Mechanics and Arctic Engineering, vol. 146, no. 2, 021201. https://doi.org/10.1115/1.4063181 Submerged oscillating plates GN equations shallow water waves wave reflection and transmission fluid-structure interaction coastal engineering hydrodynamics /dk/atira/pure/subjectarea/asjc/2200/2212 name=Ocean Engineering /dk/atira/pure/subjectarea/asjc/2200/2210 name=Mechanical Engineering article 2024 ftunivdundeepure https://doi.org/10.1115/1.4063181 2025-05-28T04:26:43Z We consider a horizontal, submerged plate in shallow water that is allowed to oscillate in the vertical direction due to the wave loads. The plate is attached to a linear spring and damper to control the oscillations. The focus of the study is on the transformation of the wave field by the submerged oscillating plate. To estimate energy scattering, wave reflection and transmission coefficients are determined from four wave gauges; two placed upwave and two placed downwave of the oscillating plate. The flow is governed by the nonlinear Level I Green-Naghdi (GN) equations, coupled with the equations of the vertical oscillations of the plate. Time series of water surface elevation recorded at gauges upwave and downwave of the plate obtained by the GN model are compared with the available laboratory experiments and other data, and very good agreement is observed. Wave reflection and transmission coefficients are then determined for a range of involved parameters, including wave conditions (wavelength and wave height), initial submergence depth of the plate, plate length, and the spring-damper system attached to the plate. It is found that a submerged oscillating plate can have a remarkable effect on the wave field, and that nonlinearity plays an important role in this wave-structure interaction problem. Discussion is provided on how the wave reflection and transmission coefficients vary with the wave conditions, plate characteristics, initial submergence depth and spring-damper system properties Article in Journal/Newspaper Arctic Unknown Journal of Offshore Mechanics and Arctic Engineering 146 2
spellingShingle Submerged oscillating plates
GN equations
shallow water waves
wave reflection and transmission
fluid-structure interaction
coastal engineering
hydrodynamics
/dk/atira/pure/subjectarea/asjc/2200/2212
name=Ocean Engineering
/dk/atira/pure/subjectarea/asjc/2200/2210
name=Mechanical Engineering
Chen, Yongbo
Hayatdavoodi, Masoud
Zhao, Binbin
Ertekin, R. Cengiz
Scattering of Long Waves by Freely Oscillating Submerged Plates
title Scattering of Long Waves by Freely Oscillating Submerged Plates
title_full Scattering of Long Waves by Freely Oscillating Submerged Plates
title_fullStr Scattering of Long Waves by Freely Oscillating Submerged Plates
title_full_unstemmed Scattering of Long Waves by Freely Oscillating Submerged Plates
title_short Scattering of Long Waves by Freely Oscillating Submerged Plates
title_sort scattering of long waves by freely oscillating submerged plates
topic Submerged oscillating plates
GN equations
shallow water waves
wave reflection and transmission
fluid-structure interaction
coastal engineering
hydrodynamics
/dk/atira/pure/subjectarea/asjc/2200/2212
name=Ocean Engineering
/dk/atira/pure/subjectarea/asjc/2200/2210
name=Mechanical Engineering
topic_facet Submerged oscillating plates
GN equations
shallow water waves
wave reflection and transmission
fluid-structure interaction
coastal engineering
hydrodynamics
/dk/atira/pure/subjectarea/asjc/2200/2212
name=Ocean Engineering
/dk/atira/pure/subjectarea/asjc/2200/2210
name=Mechanical Engineering
url https://discovery.dundee.ac.uk/en/publications/6b4a41e8-fe78-40b5-b713-df652d1d7951
https://doi.org/10.1115/1.4063181
https://discovery.dundee.ac.uk/ws/files/106167424/CHZE_JOMAE_2023_ACCEPTED.pdf
http://www.scopus.com/inward/record.url?scp=85177834032&partnerID=8YFLogxK