The tip-leakage vortex (TLV) cavitation is a challenging issue for a variety of axial hydraulic
turbines and pumps from both technical and scientific viewpoints. The flow characteristics of …

Tip leakage vortex (TLV) usually exists at a small tip clearance in axial-flow energy
conversion machines, which may induce flow loss, vibration, noise and vortex cavitation. In …

Tip clearance cavitation (TCC) which is consisted of tip leakage vortex (TLV) cavitation and
gap cavitation (occurs inside the gap region) is a common phenomenon in the gap flow filed …

In order to reveal transient characteristics of flow field in WDS of HPs, theoretical analysis,
numerical simulation and experiment are combined to investigate nine transitions. Detached …

The dynamic characteristics of the pumped storage unit (pump-turbine runner) make it highly
susceptible to vibrations. Previous studies seldom addressed the clearance variation due to …

Passive methods of flow and cavitation control appear to offer some of the best prospects in
the field of hydraulic engineering and marine applications. In this article, we aimed at an …

The paper deals with an experimental study of tip-clearance cavitation inception and
development and its vortical structure coupled with dynamics of the main attached cavity on …

This work investigates the dynamic bubble behaviors between two cylinders within a
confined space using high-speed photographic experiments and Kelvin impulse theory …

Axial-flow turbomachinery is widely used in low head water transfer and electricity
generation projects. As there is a gap between the impeller and casing of the tubular flow …

The axial-flow impellers are widely applied to industry due to their excellent hydraulic
performance and simple structure, but they may be affected by their eccentricity during …