A5039296722- Hydraulic and Pneumatic Systems
- Cavitation Phenomena in Pumps
- Rocket and propulsion systems research
- Aerodynamics and Fluid Dynamics Research
- Water Systems and Optimization
- Oil and Gas Production Techniques
- Hydraulic flow and structures
Yangzhou University
2023-2024
To explore the structural dynamic characteristics of impeller and shaft system axial flow pump as turbine, variation law transient equivalent stress, deformation, mode are analyzed by fluid-structure interaction method. Findings indicate that stress is centralized at blade root around hub tends to decrease it moves towards shroud. The maximum 1.0Qbep 1.1Qbep 1.26 times 2.0 higher than 0.8Qbep. Blade deformation significantly influenced rate. 1.6 3.6 with prestress in dry has an average...
Axial-flow pumps may experience significant pressure pulsation and high hydraulic noise when deviating from design conditions, this article investigates the cross influence of rotational speed flow rate on inlet an axial-flow pump based coherence theory through physical model experiments. The energy amplitude is directly proportional to inversely rate, as increases, distribution blade passage frequency (fBPF) within different bands improves. Pressure overall natural device work together...
Asymmetric layout gate station projects are prevalent in engineering. When multiple pump units operate within such projects, the inflow patterns of devices at different stations exhibit significant variations. Notably, edge often display adverse operating characteristics, including vibration. This study aims to elucidate hydraulic behavior asymmetric using numerical simulation methods. We validate reliability our calculations through physical model tests. Specifically, we investigate flow...
The safety barrier is often positioned at the entrance of inlet passage in large and medium-sized low-lift pump stations, to ensure people animals. To elucidate blocking effect its influence mechanism on internal flow passage, numerical simulation combined with physical model test were employed investigate impact cross-section bar spacing head loss, was clarified. results showed that optimal form found be circular from standpoint loss. When blockage ratio exceeds 0.3; prompt clearance recommended.