管道动力系统中非定常流动特性

The Characters of the Unsteady Flow in the Dynamical System of the Pipeline

管道动力系统中非定常流动工况是不可避免的,并且在一定条件下,具有强瞬变特性。研究计算表明,系统的非定常流动特性与无量纲水头有内在联系,可通过合理选配无量纲水头控制系统瞬变强度和时间,为动力系统的安全防护提供了一种新的途径。

The operating mode of the unsteady flow in the dynamic system of the pipeline is inevitable, and has the character of the strong transitory in certain cases. The studies and calculations show that the character of the unsteady flow in the system has internal relation with the non-dimensional water head. The transient intensity and period of the system can be controlled by choosing non-dimensional water head rationally, which gives a new way for the safety in protection.