Wave Energy Dissipation by Permeable and Impermeable Submerged Breakwaters
The purpose of this study was to investigate the effect of the porosity of a submerged breakwater on wave fields, including snapshots of the wave, velocity profiles of the water over the structure, and the kinetic energy of the wave. Two-dimensional experiments were conducted for submerged trapezoid...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Isfahan University of Technology
2016-01-01
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| Series: | Journal of Applied Fluid Mechanics |
| Subjects: | |
| Online Access: | http://jafmonline.net/JournalArchive/download?file_ID=41367&issue_ID=237 |
| _version_ | 1818210080083935232 |
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| author | Yonguk Ryu Dongsoo Hur Sungboo Park Ho Hwan Chun Kwang Hyo Jung |
| author_facet | Yonguk Ryu Dongsoo Hur Sungboo Park Ho Hwan Chun Kwang Hyo Jung |
| author_sort | Yonguk Ryu |
| collection | DOAJ |
| description | The purpose of this study was to investigate the effect of the porosity of a submerged breakwater on wave fields, including snapshots of the wave, velocity profiles of the water over the structure, and the kinetic energy of the wave. Two-dimensional experiments were conducted for submerged trapezoidal breakwaters with impermeable and permeable layers in a two-dimensional wave tank. The flow fields obtained by the particle image velocimetry (PIV) technique are presented to understand the flow characteristics due to the waves’ interactions with the submerged impermeable and permeable breakwaters, and these characteristics showed that the vertical velocity dominant flow occurred under the crest of the wave. In addition, the kinetic energies were compared for different porosities and wave conditions. The comparisons of the wave flow fields and kinetic energy distributions showed that the different pattern of the dissipated kinetic energy was dependent on the porosity. The dissipation of kinetic energy also was observed to increase as the wave period increased. The comparisons indicated that greater amounts of energy were dissipated for longer wave periods. |
| first_indexed | 2024-12-12T05:10:55Z |
| format | Article |
| id | doaj.art-5f9c283baf334f69bd4366d7d26e397d |
| institution | Directory Open Access Journal |
| issn | 1735-3572 |
| language | English |
| last_indexed | 2024-12-12T05:10:55Z |
| publishDate | 2016-01-01 |
| publisher | Isfahan University of Technology |
| record_format | Article |
| series | Journal of Applied Fluid Mechanics |
| spelling | doaj.art-5f9c283baf334f69bd4366d7d26e397d2022-12-22T00:36:55ZengIsfahan University of TechnologyJournal of Applied Fluid Mechanics1735-35722016-01-019626352645.Wave Energy Dissipation by Permeable and Impermeable Submerged BreakwatersYonguk Ryu0Dongsoo Hur1Sungboo Park2Ho Hwan Chun3Kwang Hyo Jung4Korea Institute of Civil Engineering and Building TechnologyGyungsang National UniversityPusan National UniversityPusan National UniversityPusan National UniversityThe purpose of this study was to investigate the effect of the porosity of a submerged breakwater on wave fields, including snapshots of the wave, velocity profiles of the water over the structure, and the kinetic energy of the wave. Two-dimensional experiments were conducted for submerged trapezoidal breakwaters with impermeable and permeable layers in a two-dimensional wave tank. The flow fields obtained by the particle image velocimetry (PIV) technique are presented to understand the flow characteristics due to the waves’ interactions with the submerged impermeable and permeable breakwaters, and these characteristics showed that the vertical velocity dominant flow occurred under the crest of the wave. In addition, the kinetic energies were compared for different porosities and wave conditions. The comparisons of the wave flow fields and kinetic energy distributions showed that the different pattern of the dissipated kinetic energy was dependent on the porosity. The dissipation of kinetic energy also was observed to increase as the wave period increased. The comparisons indicated that greater amounts of energy were dissipated for longer wave periods.http://jafmonline.net/JournalArchive/download?file_ID=41367&issue_ID=237SubSubmerged breakwater; Velocity profile; Energy dissipation; Kinetic energy; Permeability.merged breakwater; Velocity profile; Wave energy dissipation; Wave kinetic energy; Permeability |
| spellingShingle | Yonguk Ryu Dongsoo Hur Sungboo Park Ho Hwan Chun Kwang Hyo Jung Wave Energy Dissipation by Permeable and Impermeable Submerged Breakwaters Journal of Applied Fluid Mechanics SubSubmerged breakwater; Velocity profile; Energy dissipation; Kinetic energy; Permeability.merged breakwater; Velocity profile; Wave energy dissipation; Wave kinetic energy; Permeability |
| title | Wave Energy Dissipation by Permeable and Impermeable Submerged Breakwaters |
| title_full | Wave Energy Dissipation by Permeable and Impermeable Submerged Breakwaters |
| title_fullStr | Wave Energy Dissipation by Permeable and Impermeable Submerged Breakwaters |
| title_full_unstemmed | Wave Energy Dissipation by Permeable and Impermeable Submerged Breakwaters |
| title_short | Wave Energy Dissipation by Permeable and Impermeable Submerged Breakwaters |
| title_sort | wave energy dissipation by permeable and impermeable submerged breakwaters |
| topic | SubSubmerged breakwater; Velocity profile; Energy dissipation; Kinetic energy; Permeability.merged breakwater; Velocity profile; Wave energy dissipation; Wave kinetic energy; Permeability |
| url | http://jafmonline.net/JournalArchive/download?file_ID=41367&issue_ID=237 |
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