Effect of interaction between duct and rotor on energy collection performance of vertical axis turbine
SONG Ke1*, YANG Bangcheng2
1. School of Mechanical and Electrical Engineering, Kunming University, Kunming, Yunnan 650214, China;2. Faculty of Civil Engineering and Mechanics, Kunming University of Science and Technology, Kunming, Yunnan 650500, China
Abstract：To evaluate the effect of interaction between duct and rotor on the energy collection perfor-mance of a vertical axis ducted turbine, the ducts with varied camber and attack angle ducts, bare turbine, and corresponding ducted turbines were numerically studied by introducing the disassembled formula of induction factor and using computational fluid dynamics method. The results show that the ducted turbines have higher output power than the bare turbine, and the output power of the system will be further improved with the increase of the camber and attack angle of ducts in a certain range. In addition, the interaction effect between the duct and rotor is closely related to the energy collection performance of the ducted turbine. The corresponding interaction induction factor ai, to a certain extent, can well quantify the interaction effect and measure the advantages and disadvantages of the energy collection performance of the system. It is also found that the smaller the corresponding ai to the system, the stronger the interaction effect between duct and rotor, and the better the energy harvesting perfor-mance of the system. The research offers a reference for the optimal design and internal interaction analysis of vertical axis ducted turbines.
宋科*,杨邦成. 导流涵道与叶轮相互作用对垂直轴涡轮机能量采集性能的影响[J]. 排灌机械工程学报, 2023, 41(9): 920-925.
SONG Ke*,YANG Bangcheng. Effect of interaction between duct and rotor on energy collection performance of vertical axis turbine. Journal of Drainage and Irrigation Machinery Engin, 2023, 41(9): 920-925.
