螺旋形Savonius水轮机的水动力性能研究  

Study on Hydrodynamic Performance of Spiral Savonius Turbine

作　　者：蔡泽林 宋瑞银[3] 吴瑞明 陈凯翔 吴烨卿 吴映江 CAI Ze-lin;SONG Rui-yin;WU Rui-ming;CHEN Kai-xiang;WU Ye-qing;WU Ying-jiang(School of Mechanical and Energy Engineering,Zhejiang University of Science and Technology,Hangzhou 310023,China;Hangzhou Traffic Vocational High School,Hangzhou 310014,China;NingboTech University,Ningbo 315100,China;Faculty of Mechanical Engineering&Mechanics,Ningbo University,Ningbo 315211,China)

机构地区：[1]浙江科技学院机械与能源工程学院,浙江杭州310023 [2]杭州市交通职业高级中学,浙江杭州310014 [3]浙大宁波理工学院,浙江宁波315100 [4]宁波大学机械工程与力学学院,浙江宁波315211

出　　处：《水电能源科学》2021年第6期161-165,共5页Water Resources and Power

基　　金：国家重点研发计划(2016YFC0300500);宁波市重大科技攻关项目(2017C110005);宁波市科技计划项目(2015C50061)。

摘　　要：螺旋S型水轮机相较于传统水轮机具有升力.可有效提升自启性能﹐具有良好的应用价值。为了研究螺旋S型水轮机水动力性能﹐采用数值模拟和试验验证相结合的方法,分析了螺旋角、重叠率,高径比,流速对水轮机工作性能的影响。结果表明,螺旋角使水轮机受到正负交替变化的升力,且螺旋角为15°时水轮机的功率系数最高;水轮机无重叠率时,动转矩系数最大;水轮机高径比为1.4时﹐其性能最优;在研究参数范围内﹐流速为1.5 m/s时水轮机功率系数最高可达0.362。Compared with the traditional hydraulic turbines,spiral S-type turbine has lifting force,which can effectively improve self-starting performance and have good application value.The numerical simulation and experimental verification are used to analyze the effect of twist angle,overlap rate,aspect ratio and flow velocity on the performance of the turbine.The results show that the existence of the twist angle makes the turbine subject to the lifting force of positive and negative alternation,and the power coefficient of the turbine is the highest when the twist angle is 15°.The dynamic torque coefficient is the largest when the blades does not have overlap ratio.The performance of the turbine is optimal when the aspect ratio is 1.4.Within the range of the research parameters,the power coefficient can reach 0.362 at a flow rate of 1.5 m/s.

关 键 词：螺旋形Savonius水轮机 升力系数 功率系数 重叠率 高径比 

分 类 号：TK79[动力工程及工程热物理—流体机械及工程]