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Interaction between the atmospheric boundary layer and a stand-alone wind turbine in Gansu-Part II: Numerical analysis
Zheng Z; Gao ZT; Li DS; Li RN; Li Y; Hu QH; Hu WR(胡文瑞)
2018-09-01
发表期刊SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
卷号61期号:9页码:94712
ISSN1674-7348
摘要To analyze the interaction between wind turbines and the atmospheric boundary layer, we integrated a large-eddy simulation with an actuator line model and examined the characteristics of wind-turbine loads and wakes with reference to a corresponding experiment in Gansu. In the simulation, we set the wind turbine to have a rotor diameter of 14.8 m and a tower height of 15.4 m in the center of an atmospheric boundary layer with a 10.6A degrees yaw angle. The results reveal an obviously skewed wake structure behind the rotor due to the thrust component normal to the flow direction. The power spectra of the inflow fluctuation velocity exhibit a region of -5/3 slope, which confirms the ability of large-eddy simulations to reproduce the energy cascade from larger to smaller scales. We found there to be more energy in the power spectrum of the axial velocity, which shows that coherent turbulence structures have more energy in the horizontal direction. By the conjoint analysis of atmospheric turbulence and windturbine loads, we found that when the inflow wind direction changes rapidly, the turbulence kinetic energy and coherent turbulence kinetic energy in the atmospheric turbulence increase, which in turn causes fluctuations in the wind turbine load. Furthermore, anisotropic atmospheric turbulence causes an asymmetric load cycle, which imposes a strike by the turbine blade on the shaft, thereby increasing the fatigue load on the shaft. Our main conclusion is that the atmospheric boundary layer has a strong effect on the evolution of the wake and the structural response of the turbine.
关键词wind power atmospheric turbulence effects finite volume methods large-eddy simulations
DOI10.1007/s11433-018-9214-1
URL查看原文
收录类别SCI ; EI
语种英语
WOS记录号WOS:000437173700006
关键词[WOS]SCALE ; WAKES ; TURBULENCE ; MODELS ; TUNNEL
WOS研究方向Physics, Multidisciplinary
WOS类目Physics
项目资助者National Basic Research Program of China [2014CB046201] ; National Natural Science Foundation of China [51465033, 51766009, 51479114] ; Thousand Talents Program ; NSFC-RCUK_EPSRC ; platform construction of ocean energy comprehensive supporting service [GHME2014ZC01] ; High-tech Ship Research Projects - MIITC Floating Support platform project [201622] ; State Key Laboratory of Ocean Engineering at Shanghai Jiao Tong University
论文分区二类/Q1
力学所作者排名1
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://dspace.imech.ac.cn/handle/311007/77944
专题国家微重力实验室
作者单位1.Lanzhou Univ Technol, Sch Energy & Power Engn, Lanzhou 730050, Gansu, Peoples R China
2.Gansu Prov Technol Ctr Wind Turbines, Lanzhou 730050, Gansu, Peoples R China
3.Key Lab Fluid Machinery & Syst, Lanzhou 730050, Gansu, Peoples R China
4.Shanghai Jiao Tong Univ, Sch Naval Architecture Ocean & Civil Engn, Shanghai 200240, Peoples R China
5.Chinese Acad Sci, Inst Mech, Beijing 100080, Peoples R China
推荐引用方式
GB/T 7714
Zheng Z,Gao ZT,Li DS,et al. Interaction between the atmospheric boundary layer and a stand-alone wind turbine in Gansu-Part II: Numerical analysis[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2018,61(9):94712.
APA Zheng Z.,Gao ZT.,Li DS.,Li RN.,Li Y.,...&胡文瑞.(2018).Interaction between the atmospheric boundary layer and a stand-alone wind turbine in Gansu-Part II: Numerical analysis.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,61(9),94712.
MLA Zheng Z,et al."Interaction between the atmospheric boundary layer and a stand-alone wind turbine in Gansu-Part II: Numerical analysis".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 61.9(2018):94712.
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