Characteristics of Water Surface Variation around Double-Breaking Type Artificial Reef
A submerged breakwater is one of the coastal structures used to reduce wave energy and coastal erosion. However, a submerged breakwater has a negative aspect in that a strong rip current occurring around an open inlet due to a difference in mean water levels at the front and rear sides of the struct...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
The Korean Society of Ocean Engineers
2019-06-01
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| Series: | 한국해양공학회지 |
| Subjects: | |
| Online Access: | http://joet.org/upload/pdf/joet-33-3-280.pdf |
| _version_ | 1818302398157815808 |
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| author | Young-Seop Shin Seong-Dae Lee |
| author_facet | Young-Seop Shin Seong-Dae Lee |
| author_sort | Young-Seop Shin |
| collection | DOAJ |
| description | A submerged breakwater is one of the coastal structures used to reduce wave energy and coastal erosion. However, a submerged breakwater has a negative aspect in that a strong rip current occurring around an open inlet due to a difference in mean water levels at the front and rear sides of the structure leads to scouring. Such scouring has a bad effect on its stability. In order to eliminate this kind of demerit, this study investigated an artificial reef of the overflow type with openings. We also developed a program where the flows around the artificial reef of the overflow type could be analyzed numerically. An unstructured grid system was used to cover the various geometries, and the level set method was applied to treat the movement of the free surface. To verify these numerical schemes, hydraulic physical tests were performed on the submerged breakwater and double breaking type artificial reef. Then, the wave height and velocity distribution around the reef were examined using the experimental results. Comparisons between the results of hydraulic and numerical tests showed reasonable agreement. |
| first_indexed | 2024-12-13T05:38:16Z |
| format | Article |
| id | doaj.art-00e35916450f4fe6808e4e56e60f8fca |
| institution | Directory Open Access Journal |
| issn | 1225-0767 2287-6715 |
| language | English |
| last_indexed | 2024-12-13T05:38:16Z |
| publishDate | 2019-06-01 |
| publisher | The Korean Society of Ocean Engineers |
| record_format | Article |
| series | 한국해양공학회지 |
| spelling | doaj.art-00e35916450f4fe6808e4e56e60f8fca2022-12-21T23:57:51ZengThe Korean Society of Ocean Engineers한국해양공학회지1225-07672287-67152019-06-0133328028810.26748/KSOE.2019.0352896Characteristics of Water Surface Variation around Double-Breaking Type Artificial ReefYoung-Seop ShinSeong-Dae LeeA submerged breakwater is one of the coastal structures used to reduce wave energy and coastal erosion. However, a submerged breakwater has a negative aspect in that a strong rip current occurring around an open inlet due to a difference in mean water levels at the front and rear sides of the structure leads to scouring. Such scouring has a bad effect on its stability. In order to eliminate this kind of demerit, this study investigated an artificial reef of the overflow type with openings. We also developed a program where the flows around the artificial reef of the overflow type could be analyzed numerically. An unstructured grid system was used to cover the various geometries, and the level set method was applied to treat the movement of the free surface. To verify these numerical schemes, hydraulic physical tests were performed on the submerged breakwater and double breaking type artificial reef. Then, the wave height and velocity distribution around the reef were examined using the experimental results. Comparisons between the results of hydraulic and numerical tests showed reasonable agreement.http://joet.org/upload/pdf/joet-33-3-280.pdfSubmerged breakwaterDouble breaking type artificial reefUnstructured grid systemLevel set methodHydraulic experiments |
| spellingShingle | Young-Seop Shin Seong-Dae Lee Characteristics of Water Surface Variation around Double-Breaking Type Artificial Reef 한국해양공학회지 Submerged breakwater Double breaking type artificial reef Unstructured grid system Level set method Hydraulic experiments |
| title | Characteristics of Water Surface Variation around Double-Breaking Type Artificial Reef |
| title_full | Characteristics of Water Surface Variation around Double-Breaking Type Artificial Reef |
| title_fullStr | Characteristics of Water Surface Variation around Double-Breaking Type Artificial Reef |
| title_full_unstemmed | Characteristics of Water Surface Variation around Double-Breaking Type Artificial Reef |
| title_short | Characteristics of Water Surface Variation around Double-Breaking Type Artificial Reef |
| title_sort | characteristics of water surface variation around double breaking type artificial reef |
| topic | Submerged breakwater Double breaking type artificial reef Unstructured grid system Level set method Hydraulic experiments |
| url | http://joet.org/upload/pdf/joet-33-3-280.pdf |
| work_keys_str_mv | AT youngseopshin characteristicsofwatersurfacevariationarounddoublebreakingtypeartificialreef AT seongdaelee characteristicsofwatersurfacevariationarounddoublebreakingtypeartificialreef |