In the present review, recent progress on the vortex identification methods are introduced
with a focus on the newly proposed omega method (Ω method). The advantages of Ω …

Over the past decade, the use of conventional one-dimensional numerical-simulation
methods has been demonstrated to be inadequate in terms of their usefulness in …

An experimental investigation based on particle image velocimetry (PIV) technology was
used to measure the internal flow in a low-specific-speed centrifugal pump impeller. The …

Based on the principles of bionics, this study drew on the protuberances of the leading edge
of a humped whale flipper, designed different bionic protuberances applied to stay-guide …

Rotating stall in centrifugal pumps takes place frequently under part-load conditions, along
with high pressure pulsation. The major focus for studies is rotating stall inside the impeller …

Pump as turbine (PAT) is a type of energy recovery equipment. However, the mechanism of
performance degradation when it deviates from the design working condition is …

Two kinds of two-stage broken line closure laws of the wicket gates, modified A scheme
(MAS) and modified B scheme (MBS), are presented to investigate the relationship between …

Centrifugal pumps are fundamental machines in our daily life. Indeed, they can be found
everywhere, for instance, in domestic, civil, industrial, and agricultural fields. In the last …

Due to high power consumption and low energy efficiency of the hydrogenation feed
multistage pump, conducting structural optimization design and reducing energy losses for …

Multistage pumps are intended to improve designs with low‐vibration and‐noise features as
the industry applications increase the technical requirements. In this frame, it becomes really …