Shelter effect efficacy of sand fences: A comparison of systems in a wind tunnel
文献类型：期刊论文
| 作者 | Wang, Tao1,2,3,4; Qu, Jianjun1,2,3; Ling, Yuquan1; Liu, Bebli1,3; Xiao, Jianhua1,3 |
| 刊名 | AEOLIAN RESEARCH
 |
| 出版日期 | 2018-02-01 |
| 卷号 | 30页码:32-40 |
| ISSN号 | 1875-9637 |
| 关键词 | Blown-sand disaster Lanzhou-Xinjiang High-speed Railway Gobi Desert Flow field Mass flux density |
| DOI | 10.1016/j.aeolia.2017.11.004 |
| 通讯作者 | Wang, Tao(wtao1214@lzb.ac.cn) |
| 英文摘要 | The Lanzhou-Xinjiang High-speed Railway runs through an expansive wind area in the Gobi Desert and blown sand disasters are a critical issue affecting its operation. To strengthen the blown-sand disaster shelter systems along the railway, the shelter effects of punching plate and wire mesh fences with approximately equal porosity (48%) were simulated in a wind tunnel. The experimental results showed that the wind velocity was reduced to a higher extent by the punching plate fence than by the wire mesh fence. When a single row of sand fencing was used, the wind velocity reduction coefficient (Rc(z)) values downwind of the punching plate fence and wire mesh fence reached 71.77% and 39.37%, respectively. When double rows of sand fencing were used, the Rcz values downwind of the punching plate and wire mesh fences were approximately 87.48% and 60.81%, respectively. For the flow field structure on the leeward side of the fencing, the deceleration zone behind the punching plate fence was more pronounced than that behind the wire mesh fence. The vortex zone was not obvious and the reverse flow disappeared for both types of fences, which indicates that the turbulent intensity was small. The sand-trapping efficiency of the wire mesh fence was close to that of punching plate fence. When a single row of sand fencing was set up, the total mass flux density decreased, on average, by 65.85% downwind of the wire mesh fence, and 75.06% downwind of the punching plate fence; when double rows of sand fencing were present, the total mass flux density decreased, on average, by 84.53% downwind of the wire mesh fence and 84.51% downwind of the punching plate fence. In addition, the wind-proof efficiency and the sand-proof efficiency of the punching plate fence and the wire mesh fence decreased with increasing wind velocities. Consequently, punching plate and wire mesh fences may effectively control the sand hazard in the expansive wind area of the Gobi Desert. |
| 收录类别 | SCI |
| WOS关键词 | POROUS FENCES ; VELOCITY ; DESERT ; FLOW ; SIMULATION ; TRANSPORT ; EROSION ; FIELDS ; GOBI |
| WOS研究方向 | Physical Geography |
| WOS类目 | Geography, Physical |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCI LTD |
| WOS记录号 | WOS:000424187600004 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2558094 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Wang, Tao |
| 作者单位 | 1.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Desert & Desertificat, Lanzhou 730000, Gansu, Peoples R China 2.Ningxia Univ, Breeding Base State Key Lab Land Degradat & Ecol, Yinchuan 750021, Peoples R China 3.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Dunhuang Gobi & Desert Ecol & Environm Res Stn, Dunhuang 736200, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Tao,Qu, Jianjun,Ling, Yuquan,et al. Shelter effect efficacy of sand fences: A comparison of systems in a wind tunnel[J]. AEOLIAN RESEARCH,2018,30:32-40. |
| APA | Wang, Tao,Qu, Jianjun,Ling, Yuquan,Liu, Bebli,&Xiao, Jianhua.(2018).Shelter effect efficacy of sand fences: A comparison of systems in a wind tunnel.AEOLIAN RESEARCH,30,32-40. |
| MLA | Wang, Tao,et al."Shelter effect efficacy of sand fences: A comparison of systems in a wind tunnel".AEOLIAN RESEARCH 30(2018):32-40. |
入库方式： iSwitch采集
来源：寒区旱区环境与工程研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。