摘要
针对低流速灌渠中水轮机能量利用率低的问题,提出一种仿鱼尾双驱式垂直轴叶轮来提高发电功率,并采用CFD数值模拟与实物模型试验相结合的方法,对该叶轮的水动力性能和功率进行了局部和整体的分析。研究结果表明:对于应用在灌渠中的导流罩式的微水流水轮机,双驱设计可以提高垂直轴叶轮的能量利用率;仿鱼尾可以优化叶轮的旋转性能;仿鱼尾双驱垂直轴叶轮在微水流渠道中有着比普通水平叶轮更好的水动力性能。
Aiming at the problem of energy utilization of low-velocity turbines in irrigation canals,this paper proposes a fishtail vertical shaft impeller with dual-drive design,and uses the method of combining CFD numerical simulation with physical model test to analyze the hydro⁃dynamic properties and power of the impeller.The results show that for the micro-water flow turbine equipped with the deflector cover,the dual-drive design can increase the energy utilization rate;the imitation fishtail can optimize the rotation performance of the impeller;the im⁃itation fishtail double-drive vertical axis impeller has better energy utilization and hydrodynamic performance than the ordinary horizontal im⁃peller at the low flow rate of the micro-water head.
作者
廉帅
高强
王涛
闫宏伟
LIAN Shuai;GAO Qiang;WANG Tao;YAN Hong-wei(School of Mechanical Engineering,North University of China,Taiyuan 030003,Shaanxi Province,China)
出处
《中国农村水利水电》
北大核心
2023年第5期251-255,261,共6页
China Rural Water and Hydropower
基金
山西省自然科学基金(20210302123038)
山西省回国留学人员科研资助项目(2020-110)。
关键词
灌渠
低流速
能量利用率
双驱
仿鱼尾
水动力性能
irrigation canals
low flow rates
energy efficiency
double drive
fishtail
hydrodynamic performance
