用水轮机能量特性比较稳定性——紊流损失分析法  

Comparison of Turbines Stability by Energy Characteristics

作　　者：宋立人[1] 胡伟明 

机构地区：[1]中国长江三峡工程开发总公司

出　　处：《中国三峡建设》2000年第7期27-29,共3页China Three Gorges Construction

摘　　要：变换欧拉方程式推导出紊流方程式 ,该方程中提出了“虚拟最优工况”的概念 ,将转轮前后的紊流流态分离出来 ,利用水轮机的能量特性计算紊流损失 ,比较其大小 。A turbulence equation has been derived from the alternated Euler's equation and been introduced into of a concept regarding optimum virtual operation condition. The turbulent patterns upstream and downstream of a runner were separated off and a comparison was made for the turbulent losses calculated by the energy characteristics of the turbine, in order to identify the risk under stable operation condition.

关 键 词：紊流损失 转轮稳定性 水轮机 运行风险 

分 类 号：TK730.7[交通运输工程—轮机工程]