基于CFD的混流式水轮机转轮优化分析  

Analysis on the Optimization of Francis Turbine Runner Based on CFD

作　　者：杜中奎 卓莎林 胥桥 刘阳 韦正鹏 DU Zhongkui;ZHUO Shalin;XU Qiao;LIU Yang;WEI Zhengpeng(Huadian Sichuan Power Generation Co.,Ltd.Baozhusi Hydropower Plant,Guangyuan 628000,China;Huadian Electric Power Research Institute Co.,Ltd.,Hangzhou 310030,China)

机构地区：[1]华电四川发电有限公司宝珠寺水力发电厂,四川广元628000 [2]华电电力科学研究院有限公司,浙江杭州310012

出　　处：《云南水力发电》2023年第11期249-253,共5页Yunnan Water Power

摘　　要：为评估水轮机改造前后的水力性能,借助商业CFD软件,对比分析3种特征工况改造前后转轮及过流部件压力、流线等水力特性,评估水轮机能量特性.计算结果表明,新转轮水力性能较原转轮有了明显改善,空化和叶道涡等性能都明显优于原转轮;新水轮机最优效率可达96.33%,加权平均效率较原水轮机提升超1%.To evaluate the hydraulic performance of hydraulic turbines before and after renovation,this article uses commercial CFD software to compare and analyze the hydraulic characteristics of the runner and flow passage components,such as pressure and streamline,before and after the renovation of three characteristic operating conditions,and evaluates the energy characteristics of hydraulic turbines.The calculation results show that the hydraulic performance of the new runner has been significantly improved compared to the original runner,and the performance of cavitation and blade vortex are significantly better than the original runner.The optimal efficiency of the new water turbine can reach 96.33%,with a weighted average efficiency improvement of over 1%compared to the original water turbine.

关 键 词：混流式水轮机 CFD 转轮 优化设计 水力性能 

分 类 号：TK733.1[交通运输工程—轮机工程]