德能湘江水电站尾水管水流流态改善  

Improvement of Flow Pattern in Tailrace Conduit of Deneng Xiangjiang Hydropower Station

作　　者：唐仁琥 郑吉斯 TANG Ren-hu;ZHENG Ji-si(Hunan Deneng Xiangjiang Hydropower Co.,LTD.,Yongzhou 425917,China;Shenzhen Energy Science and Technology Co.,LTD.,Shenzhen 518133,China)

机构地区：[1]湖南德能湘江水电有限责任公司,湖南永州425917 [2]深圳市恩莱吉能源科技有限公司,广东深圳518133

出　　处：《水电能源科学》2023年第11期191-194,38,共5页Water Resources and Power

摘　　要：针对德能湘江水电站扩容后尾水管内水流出现明显脱流与回流、效率低、空蚀加剧的状况,采用计算流体动力学CFD进行分析,提出对尾水管修形或更换转轮的方法,以改善尾水管内水流流态。研究表明此两种方法均有效,可为类似工程提供参考。In response to the evident phenomena of flow separation and backflow,low efficiency,and increased cavitation in the tailrace conduit of the Deneng Xiangjiang Hydropower Station after expansion,computational fluid dynamics(CFD) analysis was employed.Two methods,namely,modifying the shape of the tailrace conduit or replacing the runner,were proposed to improve the flow pattern within the tailrace conduit.Research has demonstrated the effectiveness of both methods,which can provide reference for similar projects.

关 键 词：尾水管 水流流态 CFD 叶片安放角 

分 类 号：TV73[水利工程—水利水电工程]