Experimental and numerical research on wind characteristics affected by actual mountain ridges and windbreaks: a case study of the Lanzhou-Xinjiang high-speed railway
To reduce the impact of a mountain ridge on the crosswind flow field of a specific section of the Lanzhou-Xinjiang high-speed railway, a portion of the mountain ridge was removed to increase the distance from the windbreak. To verify the effects of this flow optimization measure, the wind speed and...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2020-01-01
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| Series: | Engineering Applications of Computational Fluid Mechanics |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1080/19942060.2020.1831963 |
| _version_ | 1818603461297569792 |
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| author | Zhengwei Chen Tanghong Liu Miao Yu Guang Chen Mingyang Chen Zijian Guo |
| author_facet | Zhengwei Chen Tanghong Liu Miao Yu Guang Chen Mingyang Chen Zijian Guo |
| author_sort | Zhengwei Chen |
| collection | DOAJ |
| description | To reduce the impact of a mountain ridge on the crosswind flow field of a specific section of the Lanzhou-Xinjiang high-speed railway, a portion of the mountain ridge was removed to increase the distance from the windbreak. To verify the effects of this flow optimization measure, the wind speed and wind angle were tested in this mountain ridge region. In this paper, under the actual conditions of this specific case study, the average and transient wind characteristics were analyzed based on the test results. Then, based on the actual terrain model, using the computational fluid dynamics (CFD) method with two inlet boundary conditions, namely, constant wind and exponential wind, the results obtained from the two boundary conditions were validated. Furthermore, the visualized flow structures and wind speed distributions along the railway under both boundary conditions were compared. Finally, along the railway, the impacts of different terrain types on the flow field of the railway were compared. |
| first_indexed | 2024-12-16T13:23:32Z |
| format | Article |
| id | doaj.art-8198055bb6fc4b3fb566ff535b99faec |
| institution | Directory Open Access Journal |
| issn | 1994-2060 1997-003X |
| language | English |
| last_indexed | 2024-12-16T13:23:32Z |
| publishDate | 2020-01-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Engineering Applications of Computational Fluid Mechanics |
| spelling | doaj.art-8198055bb6fc4b3fb566ff535b99faec2022-12-21T22:30:17ZengTaylor & Francis GroupEngineering Applications of Computational Fluid Mechanics1994-20601997-003X2020-01-011411385140310.1080/19942060.2020.18319631831963Experimental and numerical research on wind characteristics affected by actual mountain ridges and windbreaks: a case study of the Lanzhou-Xinjiang high-speed railwayZhengwei Chen0Tanghong Liu1Miao Yu2Guang Chen3Mingyang Chen4Zijian Guo5Key Laboratory of Traffic Safety on Track of Ministry of Education, School of Traffic & Transportation Engineering, Central South UniversityKey Laboratory of Traffic Safety on Track of Ministry of Education, School of Traffic & Transportation Engineering, Central South UniversityP&T Research Center, CRRC Tangshan Co., Ltd.Key Laboratory of Traffic Safety on Track of Ministry of Education, School of Traffic & Transportation Engineering, Central South UniversityKey Laboratory of Traffic Safety on Track of Ministry of Education, School of Traffic & Transportation Engineering, Central South UniversityKey Laboratory of Traffic Safety on Track of Ministry of Education, School of Traffic & Transportation Engineering, Central South UniversityTo reduce the impact of a mountain ridge on the crosswind flow field of a specific section of the Lanzhou-Xinjiang high-speed railway, a portion of the mountain ridge was removed to increase the distance from the windbreak. To verify the effects of this flow optimization measure, the wind speed and wind angle were tested in this mountain ridge region. In this paper, under the actual conditions of this specific case study, the average and transient wind characteristics were analyzed based on the test results. Then, based on the actual terrain model, using the computational fluid dynamics (CFD) method with two inlet boundary conditions, namely, constant wind and exponential wind, the results obtained from the two boundary conditions were validated. Furthermore, the visualized flow structures and wind speed distributions along the railway under both boundary conditions were compared. Finally, along the railway, the impacts of different terrain types on the flow field of the railway were compared.http://dx.doi.org/10.1080/19942060.2020.1831963mountain ridgeswindbreakterraincrosswindexperimentcfd |
| spellingShingle | Zhengwei Chen Tanghong Liu Miao Yu Guang Chen Mingyang Chen Zijian Guo Experimental and numerical research on wind characteristics affected by actual mountain ridges and windbreaks: a case study of the Lanzhou-Xinjiang high-speed railway Engineering Applications of Computational Fluid Mechanics mountain ridges windbreak terrain crosswind experiment cfd |
| title | Experimental and numerical research on wind characteristics affected by actual mountain ridges and windbreaks: a case study of the Lanzhou-Xinjiang high-speed railway |
| title_full | Experimental and numerical research on wind characteristics affected by actual mountain ridges and windbreaks: a case study of the Lanzhou-Xinjiang high-speed railway |
| title_fullStr | Experimental and numerical research on wind characteristics affected by actual mountain ridges and windbreaks: a case study of the Lanzhou-Xinjiang high-speed railway |
| title_full_unstemmed | Experimental and numerical research on wind characteristics affected by actual mountain ridges and windbreaks: a case study of the Lanzhou-Xinjiang high-speed railway |
| title_short | Experimental and numerical research on wind characteristics affected by actual mountain ridges and windbreaks: a case study of the Lanzhou-Xinjiang high-speed railway |
| title_sort | experimental and numerical research on wind characteristics affected by actual mountain ridges and windbreaks a case study of the lanzhou xinjiang high speed railway |
| topic | mountain ridges windbreak terrain crosswind experiment cfd |
| url | http://dx.doi.org/10.1080/19942060.2020.1831963 |
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