Influence of Six-Degree-of-Freedom Motion of a Large Marine Data Buoy on Wind Speed Monitoring Accuracy
In order to quantitatively analyze the data measurement accuracy of ocean buoys under normal and extreme sea conditions, in this study, we simulated the six-degree-of-freedom motion response of self-designed ocean buoys under different sea conditions based on a separated vortex simulation and the fl...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-10-01
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| Series: | Journal of Marine Science and Engineering |
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| Online Access: | https://www.mdpi.com/2077-1312/11/10/1985 |
| _version_ | 1797573307856322560 |
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| author | Yunzhou Li Fuai Yang Shoutu Li Xiaoyu Tang Xuejin Sun Suiping Qi Zhiteng Gao |
| author_facet | Yunzhou Li Fuai Yang Shoutu Li Xiaoyu Tang Xuejin Sun Suiping Qi Zhiteng Gao |
| author_sort | Yunzhou Li |
| collection | DOAJ |
| description | In order to quantitatively analyze the data measurement accuracy of ocean buoys under normal and extreme sea conditions, in this study, we simulated the six-degree-of-freedom motion response of self-designed ocean buoys under different sea conditions based on a separated vortex simulation and the fluid volume method and analyzed the impact of the unsteady motion of buoys on data measurement. The results indicate that under normal sea conditions, the deviation between the numerical method used in this paper and the experimental results is less than 10%. The heaving motion of a buoy is most sensitive to changes in wave conditions. The fluctuation intensity of buoy motion is modulated by the height and wavelength of waves. When the wave height and wavelength are similar to the overall geometric size of a buoy, the wave characteristics of the buoy’s heave, yaw, and pitch motion are significant. In addition, under extreme sea conditions, the movement of the buoy can also cause a deviation in the measured velocity in the transverse flow direction, but the overall deviation is less than 10%. In extreme sea conditions, the wind speed measurement results should be corrected to improve the measurement accuracy of a buoy. |
| first_indexed | 2024-03-10T21:08:56Z |
| format | Article |
| id | doaj.art-817333fe83cb4b678e78465b3f0b426c |
| institution | Directory Open Access Journal |
| issn | 2077-1312 |
| language | English |
| last_indexed | 2024-03-10T21:08:56Z |
| publishDate | 2023-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj.art-817333fe83cb4b678e78465b3f0b426c2023-11-19T16:59:28ZengMDPI AGJournal of Marine Science and Engineering2077-13122023-10-011110198510.3390/jmse11101985Influence of Six-Degree-of-Freedom Motion of a Large Marine Data Buoy on Wind Speed Monitoring AccuracyYunzhou Li0Fuai Yang1Shoutu Li2Xiaoyu Tang3Xuejin Sun4Suiping Qi5Zhiteng Gao6College of Meteorology and Oceanography, National University of Defense Technology, Changsha 410073, ChinaSchool of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou 730050, ChinaSchool of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou 730050, ChinaState Key Laboratory of Industrial Control Technology, College of Control Science and Engineering, Zhejiang University, Hangzhou 310027, ChinaCollege of Meteorology and Oceanography, National University of Defense Technology, Changsha 410073, ChinaInstitute of Oceanographic Instrumentation, Qilu University of Technology (Shandong Academy of Sciences), Qingdao 266061, ChinaMulti-Function Towing Tank, School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaIn order to quantitatively analyze the data measurement accuracy of ocean buoys under normal and extreme sea conditions, in this study, we simulated the six-degree-of-freedom motion response of self-designed ocean buoys under different sea conditions based on a separated vortex simulation and the fluid volume method and analyzed the impact of the unsteady motion of buoys on data measurement. The results indicate that under normal sea conditions, the deviation between the numerical method used in this paper and the experimental results is less than 10%. The heaving motion of a buoy is most sensitive to changes in wave conditions. The fluctuation intensity of buoy motion is modulated by the height and wavelength of waves. When the wave height and wavelength are similar to the overall geometric size of a buoy, the wave characteristics of the buoy’s heave, yaw, and pitch motion are significant. In addition, under extreme sea conditions, the movement of the buoy can also cause a deviation in the measured velocity in the transverse flow direction, but the overall deviation is less than 10%. In extreme sea conditions, the wind speed measurement results should be corrected to improve the measurement accuracy of a buoy.https://www.mdpi.com/2077-1312/11/10/1985buoy6-DOF motiondetached-eddy simulationvolume of fluid methodunsteady motion response |
| spellingShingle | Yunzhou Li Fuai Yang Shoutu Li Xiaoyu Tang Xuejin Sun Suiping Qi Zhiteng Gao Influence of Six-Degree-of-Freedom Motion of a Large Marine Data Buoy on Wind Speed Monitoring Accuracy Journal of Marine Science and Engineering buoy 6-DOF motion detached-eddy simulation volume of fluid method unsteady motion response |
| title | Influence of Six-Degree-of-Freedom Motion of a Large Marine Data Buoy on Wind Speed Monitoring Accuracy |
| title_full | Influence of Six-Degree-of-Freedom Motion of a Large Marine Data Buoy on Wind Speed Monitoring Accuracy |
| title_fullStr | Influence of Six-Degree-of-Freedom Motion of a Large Marine Data Buoy on Wind Speed Monitoring Accuracy |
| title_full_unstemmed | Influence of Six-Degree-of-Freedom Motion of a Large Marine Data Buoy on Wind Speed Monitoring Accuracy |
| title_short | Influence of Six-Degree-of-Freedom Motion of a Large Marine Data Buoy on Wind Speed Monitoring Accuracy |
| title_sort | influence of six degree of freedom motion of a large marine data buoy on wind speed monitoring accuracy |
| topic | buoy 6-DOF motion detached-eddy simulation volume of fluid method unsteady motion response |
| url | https://www.mdpi.com/2077-1312/11/10/1985 |
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