水轮机尾水管及泄水槽内湍流的数值模拟  

Numerical Simulation of Turbine's Draft Tube and Discharge Chute

作　　者：刘德民[1] 刘小兵[1] 付远兴[1] 

机构地区：[1]西华大学能源与环境学院,四川成都610039

出　　处：《水力发电》2007年第10期57-60,共4页Water Power

基　　金：四川省重点学科项目资助(SZD0412);四川省杰出青年科技基金资助(05ZQ026-008)

摘　　要：采用SIMPLEC算法对水电站的混流式水轮机尾水管及底部泄水槽内三维湍流进行了数值模拟,结果表明,该水电站的尾水管泄水槽涌动现象严重,严重影响了水轮机的出力和效率。为此,根据数值结果分析,提出了一种新型的流线型泄水槽改进方案,经电站试用,效果很好。Three--dimensional turbulent flow in turbine＇s draft tube and discharge chute for a hydroelectric power station is simulated with SIMPLEC arithmetic. The numerical simulation results showed that the power station＇s upwelling in draft tube and discharge chute is very serious, which seriously affects the power station＇s output and efficiency. For this reason, based on the numerical simulation results, we put forward a new streamline shape discharge chute. This project is adapted in a hydropower station and the result is very well.

关 键 词：水轮机尾水管 泄水槽 湍流流动 数值模拟 改进设计 

分 类 号：TV734.1[水利工程—水利水电工程]