CFD Simulation of the Wave Pattern Above a Submerged Wave Energy Converter
This work aims to establish a numerical model to investigate the wave interaction induced by the motion of a submerged cylindrical wave energy converter. The results show that when the submerged cylinder is in forced sinusoidal heave motion, distinct hollows and humps are produced on the free surfac...
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MDPI AG
2024-12-01
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| Series: | Journal of Marine Science and Engineering |
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| Online Access: | https://www.mdpi.com/2077-1312/13/1/23 |
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| author | Hengrui Li Jinming Wu |
| author_facet | Hengrui Li Jinming Wu |
| author_sort | Hengrui Li |
| collection | DOAJ |
| description | This work aims to establish a numerical model to investigate the wave interaction induced by the motion of a submerged cylindrical wave energy converter. The results show that when the submerged cylinder is in forced sinusoidal heave motion, distinct hollows and humps are produced on the free surface. As the heave amplitude increased from 1 m to 1.8 m, the depth of the hollow increased by 454%, and the height of the hump increased by 370%. Along with strong nonlinear phenomena, the generation of up to the fourth harmonic on the free surface above the submerged body is found, and the highest amplitude of the second harmonic waves reached 68% of the primary frequency. This indicates that the energy distribution of the wave is decomposed and rebalanced, and some energy in the primary frequency accumulates towards higher harmonics. When the submerged cylinder is in forced sinusoidal surge motion, the free surface elevation decreases in a stepwise manner as the wave transitions from crest to trough. As the cylinder pitches, the elevation of the wave trough decreases by 5% compared to when the submerged cylinder remains static. |
| format | Article |
| id | doaj-art-d70aed11b27a4a198e7c9d4d07678e8f |
| institution | Kabale University |
| issn | 2077-1312 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj-art-d70aed11b27a4a198e7c9d4d07678e8f2025-01-24T13:36:34ZengMDPI AGJournal of Marine Science and Engineering2077-13122024-12-011312310.3390/jmse13010023CFD Simulation of the Wave Pattern Above a Submerged Wave Energy ConverterHengrui Li0Jinming Wu1School of Mechanical Engineering, Southeast University, Nanjing 211189, ChinaSchool of Mechanical Engineering, Southeast University, Nanjing 211189, ChinaThis work aims to establish a numerical model to investigate the wave interaction induced by the motion of a submerged cylindrical wave energy converter. The results show that when the submerged cylinder is in forced sinusoidal heave motion, distinct hollows and humps are produced on the free surface. As the heave amplitude increased from 1 m to 1.8 m, the depth of the hollow increased by 454%, and the height of the hump increased by 370%. Along with strong nonlinear phenomena, the generation of up to the fourth harmonic on the free surface above the submerged body is found, and the highest amplitude of the second harmonic waves reached 68% of the primary frequency. This indicates that the energy distribution of the wave is decomposed and rebalanced, and some energy in the primary frequency accumulates towards higher harmonics. When the submerged cylinder is in forced sinusoidal surge motion, the free surface elevation decreases in a stepwise manner as the wave transitions from crest to trough. As the cylinder pitches, the elevation of the wave trough decreases by 5% compared to when the submerged cylinder remains static.https://www.mdpi.com/2077-1312/13/1/23wave patternswave energy converterssubmerged cylindernonlinear phenomenahigher harmonics |
| spellingShingle | Hengrui Li Jinming Wu CFD Simulation of the Wave Pattern Above a Submerged Wave Energy Converter Journal of Marine Science and Engineering wave patterns wave energy converters submerged cylinder nonlinear phenomena higher harmonics |
| title | CFD Simulation of the Wave Pattern Above a Submerged Wave Energy Converter |
| title_full | CFD Simulation of the Wave Pattern Above a Submerged Wave Energy Converter |
| title_fullStr | CFD Simulation of the Wave Pattern Above a Submerged Wave Energy Converter |
| title_full_unstemmed | CFD Simulation of the Wave Pattern Above a Submerged Wave Energy Converter |
| title_short | CFD Simulation of the Wave Pattern Above a Submerged Wave Energy Converter |
| title_sort | cfd simulation of the wave pattern above a submerged wave energy converter |
| topic | wave patterns wave energy converters submerged cylinder nonlinear phenomena higher harmonics |
| url | https://www.mdpi.com/2077-1312/13/1/23 |
| work_keys_str_mv | AT hengruili cfdsimulationofthewavepatternaboveasubmergedwaveenergyconverter AT jinmingwu cfdsimulationofthewavepatternaboveasubmergedwaveenergyconverter |