可再生能源2017，Vol.35Issue(10)：1574-1580,7.
波浪发电系统专用水轮机的优化设计
Optimized design of turbine for wave power generation system
摘要
Abstract
In this paper, the author developed a new type of extreme low specific speed Francis turbine, based on the experimental wave-energy generation system in Qingdao. In order to meet the requirements of a wave power system, the numerical simulation of three -dimensional steady incompressible turbulent flow field is presented. The paper analyzes the influence of different guide vanes, different water outlet blades, runner and the taper of different draft pipes on the performance of the optimized Francis turbine and designs a suitable Francis turbine for the wave power generation system. The simulation results show that when the design speed is 180 r/min, the output power and efficiency of the turbine meet the requirement. The draft tube vortex and the tail pipe center line are close to the coaxial in the design conditions, which ensures the stability of the turbine operation. On the basis above, the optimized design Francis turbine has good hydraulic characteristics and operation stability to satisfied the characteristics of high power fluctuations.关键词
波浪发电/数值模拟/混流式水轮机Key words
wave power/numerical simulation/francis turbine分类
能源科技引用本文复制引用
李东阔,郑源,张玉全,杨春霞..波浪发电系统专用水轮机的优化设计[J].可再生能源,2017,35(10):1574-1580,7.基金项目
国家自然科学基金项目(51579080). （51579080）
