Numerical modeling and optimization of a power augmented S-type vertical axis wind turbine |
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| Authors: | Xiaojing Sun Ziyin Cao Yueqing Zhuang Yang Cao |
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| Institution: | 1. School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai, China;2. School of Energy and Power Engineering, Shanghai Key Laboratory of Power Energy in Multiphase Flow and Heat Transfer, Shanghai, China;3. Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai, China;4. School of Mechanical Engineering, Nantong University, Nantong, China |
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| Abstract: | An axial symmetry augmented vertical axis wind turbine, which is suitable for arbitrary wind directions, is proposed in this paper. In order to improve the power generation ability of the S-type vertical axis wind turbine, a set of so-called “collection-shield boards” are installed symmetrically around the rotating S-type rotor. The flow fields around this type of wind turbine are numerically simulated with the aid of CFD method. The optimized design of geometrical parameters of the rotor and collection-shield boards is conducted by using the orthogonal design method. The obtained results suggest that the power output of the optimized augmented wind turbine can reach nearly three times higher than that of the conventional S-type vertical axis wind turbine. |
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| Keywords: | Collection-shield boards numerical simulation optimization design power coefficient S-type vertical axis wind turbine |
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