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Model Analysis and System Parameters Investigation for Transient Wave in a Pump–Pipe–Valve System
Water ( IF 3.4 ) Pub Date : 2020-04-02 , DOI: 10.3390/w12041014
Zubin Liu , Dingyi Pan , Fengzhong Qu , Jianxin Hu

The frequency responses of the transient wave propagating in a pump–pipe–valve system are studied with the system transfer matrix analysis (STMA) method. Being different to that in the reservoir–pipe–valve system, the transient wave is used as a long-distance communication technology in the pump–pipe–valve system, and very few works have been done on the model analysis and strategies to control the behavior of the oscillation signal of the pipe pressure. The theoretic solutions are studied with three internal friction models: frictionless, steady friction, and unsteady friction. The dimensionless parameter of the valve signal intensity (VSI) is proposed, and it is found to be a key factor affecting the quality of the wave propagation in the pipe. A larger pressure oscillation at the upstream side results when the VSI is smaller than one, whereas a more uniform amplitude for the resonances and anti-resonances is obtained when VSI approaches one. Some feasible suggestions are provided to obtain high quality wave signals.

中文翻译:

泵-管-阀系统瞬态波模型分析及系统参数研究

使用系统传递矩阵分析 (STMA) 方法研究了在泵-管-阀系统中传播的瞬态波的频率响应。与水库-管-阀系统不同,瞬态波在泵-管-阀系统中被用作长距离通信技术,在模型分析和控制策略方面的工作很少。管道压力振荡信号的行为。使用三种内摩擦模型研究理论解:无摩擦、稳定摩擦和非稳定摩擦。提出了阀门信号强度(VSI)的无量纲参数,发现它是影响管道中波传播质量的关键因素。当 VSI 小于 1 时,上游侧压力振荡较大,而当 VSI 接近 1 时,谐振和反谐振的幅度更均匀。为获得高质量的波形信号提供了一些可行的建议。
更新日期:2020-04-02
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