Study on numerical method for roof mounted wind turbine micrositing based on U-ABL
Wang Qiang1, Wang Jianwen1,2, Hou Yali1,2, Luo Kun1,2, Gao Zhiying1,2
1.School of Energy and Power Engineering, Inner Mongolia University of Technology, Hohhot, Inner Mongolia 010051, China; 2.Key Laboratory of Wind and Solar Power Energy Utilization Technology Ministry of Education and Inner Mongolia Construction, Hohhot, Inner Mongolia 010051, China
Abstract：Based on project IEA Task 27- study on numerical method for wind turbines micrositing on top of buildings in complex urban building environment, the urban atmospheric boundary layer(U-ABL)is involved, and a new CFD numerical analysis method is explored for micrositing of small building-mounted wind turbines. In the method, the wind turbulent characteristics are analyzed by using U-ABL, consequently, more accurate and suitable inflow condition is established for the urban building environment. By making use of this method, a building in southern suburb in Hohhot city is modelled in CFD and a suitable inflow condition is included by UDF. Then, the turbulent characteristic parameters such as turbulent intensity, wind acceleration factor, average turbulent boundary layer thickness and ideal power amplifying factor in the vertical direction above the building are predicted and analyzed. The results turn out that the optimum installation location is at the leading edge of the building for a horizontal axis wind turbines and the turbines should be above the building as high as 1.50 times the building height. The case has confirmed the feasibility of the new numerical method, and provides a new idea for analyzing the wind turbulent characteristics. Meanwhile, the method also has theoretical and practical significance for small building-mounted wind turbines micrositing.
王强, 汪建文,, 侯亚丽,, 罗坤,, 高志鹰,. 基于U-ABL理论屋顶风力机微观选址数值方法探究[J]. 排灌机械工程学报, 2015, 33(9): 773-778.
Wang Qiang, Wang Jianwen,, Hou Yali,, Luo Kun,, Gao Zhiying,. Study on numerical method for roof mounted wind turbine micrositing based on U-ABL. Journal of Drainage and Irrigation Machinery Engin, 2015, 33(9): 773-778.
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