Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-19-2713-2019 |
Characterization of flow recirculation zones at the Perdigao site using multi-lidar measurements | |
Menke, Robert1; Vasiljevic, Nikola1; Mann, Jakob1; Lundquist, Julie K.2,3 | |
2019-03-01 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2019 |
卷号 | 19期号:4页码:2713-2723 |
文章类型 | Article |
语种 | 英语 |
国家 | Denmark; USA |
英文摘要 | Because flow recirculation can generate significant amounts of turbulence, it can impact the success of wind energy projects. This study uses unique Doppler lidar observations to quantify occurrences of flow recirculation on lee sides of ridges. An extensive dataset of observations of flow over complex terrain is available from the Perdigao 2017 field campaign over a period of 3 months. The campaign site was selected because of the unique terrain feature of two nearly parallel ridges with a valley-to-ridge-top height difference of about 200m and a ridge-to-ridge distance of 1.4 km. Six scanning Doppler lidars probed the flow field in several vertical planes orthogonal to the ridges using range-height indicator scans. With this lidar setup, we achieved vertical scans of the recirculation zone at three positions along two parallel ridges. We construct a method to identify flow recirculation zones in the scans, as well as define characteristics of these zones. According to our data analysis, flow recirculation, with reverse flow wind speeds greater than 0.5 m s(-1), occurs over 50% of the time when the wind direction is perpendicular to the direction of the ridges. Atmospheric conditions, such as atmospheric stability and wind speed, affect the occurrence of flow recirculation. Flow recirculation occurs more frequently during periods with wind speeds above 8 m s(-1). Recirculation within the valley affects the mean wind and turbulence fields at turbine heights on the downwind ridge in magnitudes significant for wind resource assessment. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000460118000002 |
WOS关键词 | WIND TURBINE ; COMPLEX TERRAIN ; SIMULATION |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/22803 |
专题 | 地球科学 |
作者单位 | 1.Tech Univ Denmark, DTU Wind Energy, Frederiksborgvej 399,Bldg 118, DK-4000 Roskilde, Denmark; 2.Univ Colorado, Dept Atmospher & Ocean Sci, Boulder, CO 80309 USA; 3.Natl Renewable Energy Lab, Golden, CO USA |
推荐引用方式 GB/T 7714 | Menke, Robert,Vasiljevic, Nikola,Mann, Jakob,et al. Characterization of flow recirculation zones at the Perdigao site using multi-lidar measurements[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2019,19(4):2713-2723. |
APA | Menke, Robert,Vasiljevic, Nikola,Mann, Jakob,&Lundquist, Julie K..(2019).Characterization of flow recirculation zones at the Perdigao site using multi-lidar measurements.ATMOSPHERIC CHEMISTRY AND PHYSICS,19(4),2713-2723. |
MLA | Menke, Robert,et al."Characterization of flow recirculation zones at the Perdigao site using multi-lidar measurements".ATMOSPHERIC CHEMISTRY AND PHYSICS 19.4(2019):2713-2723. |
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