Experimental and Numerical Investigation of Localized Wind Effects from Terrain Variations at a Coastal Bridge Site
Terrain conditions may significantly affect the near-ground-layer wind speed in coastal areas. In this research, wind tunnel tests and computational fluid dynamics (CFD) were performed to investigate the impact of topographic changes on the local wind field at coastal bridge sites. Considering the g...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-06-01
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| Series: | Journal of Marine Science and Engineering |
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| Online Access: | https://www.mdpi.com/2077-1312/13/7/1223 |
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| _version_ | 1849418141770186752 |
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| author | Ziyong Lin Dandan Xia Yan Jiang Zhiqun Yuan Huaifeng Wang Li Lin |
| author_facet | Ziyong Lin Dandan Xia Yan Jiang Zhiqun Yuan Huaifeng Wang Li Lin |
| author_sort | Ziyong Lin |
| collection | DOAJ |
| description | Terrain conditions may significantly affect the near-ground-layer wind speed in coastal areas. In this research, wind tunnel tests and computational fluid dynamics (CFD) were performed to investigate the impact of topographic changes on the local wind field at coastal bridge sites. Considering the geographic information system (GIS) information of an offshore bridge site, a 1:1000 topographic model was constructed to conduct tests in the wind tunnel lab under different wind directions. The influences of terrain conditions on localized wind characteristics such as the wind speed and wind attack angle under different test conditions were obtained. The results show that the wind angle varied between −6° and 6° under different conditions. To more comprehensively show the radius of influence on the local terrain, a CFD simulation was conducted. To verify the results of the wind tunnel tests, the SST k-ω model was compared and selected for simulation in this research. The influence radius of localized wind characteristics was determined by CFD simulation. The results indicate that the original topography showed “reverse amplification” on the leeward side, resulting in complex wake flows. These results may provide a reference for the design of wind-resistant structures such as bridges and offshore wind turbines in coastal areas. |
| format | Article |
| id | doaj-art-73a9031545b74ceb9bc25994d6fb063e |
| institution | Kabale University |
| issn | 2077-1312 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj-art-73a9031545b74ceb9bc25994d6fb063e2025-08-20T03:32:32ZengMDPI AGJournal of Marine Science and Engineering2077-13122025-06-01137122310.3390/jmse13071223Experimental and Numerical Investigation of Localized Wind Effects from Terrain Variations at a Coastal Bridge SiteZiyong Lin0Dandan Xia1Yan Jiang2Zhiqun Yuan3Huaifeng Wang4Li Lin5School of Civil Engineering and Architecture, Xiamen University of Technology, Xiamen 361024, ChinaSchool of Civil Engineering and Architecture, Xiamen University of Technology, Xiamen 361024, ChinaSchool of Civil Engineering, Chongqing Jiaotong University, Chongqing 400074, ChinaSchool of Mechanical and Automotive Engineering, Xiamen University of Technology, Xiamen 361024, ChinaSchool of Civil Engineering and Architecture, Xiamen University of Technology, Xiamen 361024, ChinaSchool of Civil Engineering and Architecture, Xiamen University of Technology, Xiamen 361024, ChinaTerrain conditions may significantly affect the near-ground-layer wind speed in coastal areas. In this research, wind tunnel tests and computational fluid dynamics (CFD) were performed to investigate the impact of topographic changes on the local wind field at coastal bridge sites. Considering the geographic information system (GIS) information of an offshore bridge site, a 1:1000 topographic model was constructed to conduct tests in the wind tunnel lab under different wind directions. The influences of terrain conditions on localized wind characteristics such as the wind speed and wind attack angle under different test conditions were obtained. The results show that the wind angle varied between −6° and 6° under different conditions. To more comprehensively show the radius of influence on the local terrain, a CFD simulation was conducted. To verify the results of the wind tunnel tests, the SST k-ω model was compared and selected for simulation in this research. The influence radius of localized wind characteristics was determined by CFD simulation. The results indicate that the original topography showed “reverse amplification” on the leeward side, resulting in complex wake flows. These results may provide a reference for the design of wind-resistant structures such as bridges and offshore wind turbines in coastal areas.https://www.mdpi.com/2077-1312/13/7/1223coastal bridge sitelocal terrain effecttopographic variationwind tunnel testingCFD simulationwind field characteristics |
| spellingShingle | Ziyong Lin Dandan Xia Yan Jiang Zhiqun Yuan Huaifeng Wang Li Lin Experimental and Numerical Investigation of Localized Wind Effects from Terrain Variations at a Coastal Bridge Site Journal of Marine Science and Engineering coastal bridge site local terrain effect topographic variation wind tunnel testing CFD simulation wind field characteristics |
| title | Experimental and Numerical Investigation of Localized Wind Effects from Terrain Variations at a Coastal Bridge Site |
| title_full | Experimental and Numerical Investigation of Localized Wind Effects from Terrain Variations at a Coastal Bridge Site |
| title_fullStr | Experimental and Numerical Investigation of Localized Wind Effects from Terrain Variations at a Coastal Bridge Site |
| title_full_unstemmed | Experimental and Numerical Investigation of Localized Wind Effects from Terrain Variations at a Coastal Bridge Site |
| title_short | Experimental and Numerical Investigation of Localized Wind Effects from Terrain Variations at a Coastal Bridge Site |
| title_sort | experimental and numerical investigation of localized wind effects from terrain variations at a coastal bridge site |
| topic | coastal bridge site local terrain effect topographic variation wind tunnel testing CFD simulation wind field characteristics |
| url | https://www.mdpi.com/2077-1312/13/7/1223 |
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