Abstract: Based on numerical simulation of hydraulic transients in a pump storage power station (PSP), different closure laws are investigated for use when a high-head pump-turbine load rejection occurs. According to the characteristics ...

Abstract: Air vessels have been commonly applied to prevent water hammer related to pump operations, but their connection types and effects have rarely been discussed. In this study, surge analysis of air vessels with three different ...

Abstract: This study focuses on the output variation and dynamic behavior of hydroturbines in a hydraulically coupled system under hydraulic disturbance. The theoretical formula predicting the output variation of operating turbines ...

Abstract: Pretensioned spun high-strength concrete piles usually use the traditional helical grooved steel bars as the main reinforcement, leading to insufficient ductility. Replacing prestressing steel bars with steel strands can ...