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Characteristics of wind turbine wakes for different blade designs

文献类型：期刊论文

作者Dong GD(董国丹); Qin JH(秦建华); Li ZB(李曌斌); Yang XL(杨晓雷)
刊名JOURNAL OF FLUID MECHANICS
出版日期2023-06-16
卷号965页码:A15
ISSN号0022-1120
关键词wakes turbulence simulation
DOI10.1017/jfm.2023.385
英文摘要In this work, we investigate the characteristics of wind turbine wakes for three different blade designs (i.e. the NREL-Ori, NREL-Root and NREL-Tip designs, where the NREL-Ori refers to the baseline offshore 5 MW wind turbine designed by the US National Renewable Energy Laboratory) under turbulent inflows using large-eddy simulations with the actuator surface model. The load on the blade is higher near the blade root/tip for the NREL-Root/NREL-Tip designs when compared with the NREL-Ori design, while their thrust coefficients are the same. The results show that the blade designs influence the velocity deficit in the near wake, turbulence kinetic energy and wake meandering (both amplitude and frequency). In the near-wake region, the magnitude of the velocity deficit from the NREL-Root design is higher. As for the turbulence kinetic energy, its maximum in the near wake is higher for the NREL-Tip design, while in the far wake, it is higher for the NREL-Root design. Analyses of the instantaneous spanwise wake centre positions show higher meandering amplitude for the NREL-Root design, with the magnitudes of the low-frequency components approximately the same as the other two designs under the same inflow. The dominant meandering frequencies from different designs are different, with lower values for the NREL-Root design for which the vortex structures near the hub of low frequency play leading roles, and higher values for the NREL-Tip design for which the flow structures of high frequency in the tip shear layer are more important.
分类号一类/力学重要期刊
WOS研究方向Mechanics ; Physics, Fluids & Plasmas
语种英语
WOS记录号WOS:001011344600001
资助机构NSFC Basic Science Center Program for 'Multiscale Problems in Nonlinear Mechanics' [11988102] ; National Natural Science Foundation of China [12172360, 12202456, 12202453] ; Institute of Mechanics CAS ; Chinese Academy of Sciences
其他责任者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.
源URL[http://dspace.imech.ac.cn/handle/311007/92395]  
专题力学研究所_非线性力学国家重点实验室
作者单位1.{Dong Guodan, Qin Jianhua, Li Zhaobin, Yang Xiaolei} Chinese Acad Sci Inst Mech State Key Lab Nonlinear Mech Beijing 100190 Peoples R China
2.{Dong Guodan, Qin Jianhua, Li Zhaobin, Yang Xiaolei} Univ Chinese Acad Sci Sch Engn Sci Beijing 100049 Peoples R China
推荐引用方式
GB/T 7714		 Dong GD,Qin JH,Li ZB,et al. Characteristics of wind turbine wakes for different blade designs[J]. JOURNAL OF FLUID MECHANICS,2023,965:A15.
APA 董国丹,秦建华,李曌斌,&杨晓雷.(2023).Characteristics of wind turbine wakes for different blade designs.JOURNAL OF FLUID MECHANICS,965,A15.
MLA 董国丹,et al."Characteristics of wind turbine wakes for different blade designs".JOURNAL OF FLUID MECHANICS 965(2023):A15.

入库方式： OAI收割

来源：力学研究所

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