榕江关埠引水工程水力过渡过程研究OA

Through one-dimensional numerical simulations,this study investigates the hydraulic transition process of the Rongjiang Guanbu Water Diversion Project.It analyzes how the closing pattern of the post-pump valve affects both pump speed and downstream pressure.The research demonstrates that a combined evaluation of the valve's closing mechanism and operational parameters is essential to determine the optimal closing pattern.Compared to conventional post-pump pressure regulation chambers,installing impedance-based pressure regulation chambers along the pipeline demonstrates superior water hammer protection.This configuration effectively prevents chamber leakage and negative pressure formation in pipelines,while avoiding liquid column separation.These findings provide practical guidance for similar water conveyance projects.