水锤计算中压力管道的分段问题研究  

Research on sectioning of pressure pipeline system in analysis on water hammer

作　　者：杨宝奎[1] 朱满林[1] 程虹[1] 毕小剑[1] 

机构地区：[1]西安理工大学水利水电学院,陕西西安710048

出　　处：《水利水电技术》2007年第1期53-55,73,共4页Water Resources and Hydropower Engineering

基　　金：陕西省教育厅省级重点实验室重点科研计划项目(05JS35)

摘　　要：简要介绍了水锤计算中常用的几种压力管道分段方法。重点对调整波速法进行研究,指出了该方法存在的不足,提出了相应的改进方法。改进的调整波速法能选取尽可能大的时间步长、最小化整个管系波速调整幅度、保证波速调整前后压力管道系统中水锤波的传播时间一致。算例分析表明提出的改进方法是合理的。Some conventional methods of sectioning of pressure pipeline system in analysis on water hammer are briefly introduced; in which the wave velocity method is emphatically studied and the shortcomings of this method are pointed out, and then a corresponding modified method is put forward. With the modified method, the time-step can be selected as long as possible, the adjusting amplitude of wave velocity of a whole pipeline system can be minimized and the consistency of the transmitting time of the wave from the water hammer in the pressure pipeline system before and after the adjustment can be ensured as well, The analysis on a calculation case shows that the modified method is reasonable actually.

关 键 词：水锤 特征线法 压力管道 管道分段 调整波速法 

分 类 号：TV134[水利工程—水力学及河流动力学]