Large Eddy Simulation of Wind Turbine Wakes in Forest Terrain

doi:10.3390/su15065139

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	Large Eddy Simulation of Wind Turbine Wakes in Forest Terrain
	Li YL(李韫良); Li ZB(李曌斌); Zhou ZD(周志登); Yang XL(杨晓雷)
发表期刊	SUSTAINABILITY
	2023-03
卷号	15 期号:6 页码:5139
摘要	In this study, large eddy simulation was employed to investigate the influence of the forest canopy on wind turbine wakes. Nine forest case studies were carried out with different vertical distributions of leaf area density (LAD) and values of leaf area index (LAI). It was found that the wake in forest canopies recovers at a faster rate when compared with the flat terrain. An interesting observation was the significant reduction in turbulence kinetic energy (TKE) in the lower part of the wake above the forest in comparison with the inflow TKE, which occurred for a wide range of turbine downstream positions. The increase of TKE, on the other hand, was mainly located in the region around the top tip. Analyses of the power spectral density showed that the increase in TKE happened at a certain range of frequencies for the forest canopy cases and at all the examined frequencies for the flat case. Wake meandering was also examined and was found to be of a higher amplitude and a lower dominant frequency for the forest cases compared with the flat case. In terms of the influence of forest canopy parameters, the LAI was found to have an impact greater than the vertical distribution of LAD. Specifically, the wake added TKE and wake added Reynolds shear stress were found to be approximately the same for cases with the same LAI, regardless of the vertical distribution of LAD.
关键词	large eddy simulation forest canopy wind turbine wakes
DOI	10.3390/su15065139
收录类别	SCI
语种	英语
WOS记录号	WOS:000959530200001
WOS研究方向	Green & Sustainable Science & Technology ; Environmental Sciences ; Environmental Studies
WOS类目	Science & Technology Other Topics ; Environmental Sciences & Ecology
项目资助者	NSFC Basic Science Center Program [11988102] ; National Natural Science Foundation of China [12172360]
论文分区	二类
力学所作者排名	1
RpAuthor	Yang, XL (corresponding author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China. ; Yang, XL (corresponding author), Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China.
引用统计
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/91796
专题	非线性力学国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Li YL,Li ZB,Zhou ZD,et al. Large Eddy Simulation of Wind Turbine Wakes in Forest Terrain[J]. SUSTAINABILITY,2023,15,6,:5139.
APA	李韫良,李曌斌,周志登,&杨晓雷.(2023).Large Eddy Simulation of Wind Turbine Wakes in Forest Terrain.SUSTAINABILITY,15(6),5139.
MLA	李韫良,et al."Large Eddy Simulation of Wind Turbine Wakes in Forest Terrain".SUSTAINABILITY 15.6(2023):5139.

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