Methods for flow visualization have been decisive for the historical development of fluid
mechanics. In recent years, technological advances in cameras, lasers, and other devices …

Particle image velocimetry (PIV) is presently attracting quite a lot of interest. PIV allows fluid
velocities across a region of a flow to be measured at a single instant in time and is thus an …

An experimental investigation based on PIV measurements is presented on the unsteady
flow in a centrifugal pump with vaneless volute. The study has focused on the fluid–dynamic …

Stall is a common phenomenon in centrifugal pumps under low-flow conditions; it has a
significant impact on fatigue and can even damage mechanical structural components …

The flow field within the channels of a centrifugal pump impeller is usually complex,
containing turbulent structures in a wide range of time and length scales. Identifying the …

This work performed a comprehensive comparative assessment on the capabilities and
performances of detached-eddy simulation (DES) and delayed detached-eddy simulation …

The flow in the volute of a low specific-speed pump was studied both experimentally and
numerically near its design point. Measurements included time-averaged values of velocity …

Rotating stall is a kind of strong unstable flow phenomenon, which plays a decisive role in
stable operation of centrifugal pumps. Limited by the performance of the experimental …

This paper reports velocity measurement data in the interaction region between the impeller
and vaned diffuser and the results of numerical flow simulation of the whole machine …

Due to recent emission regulations, the use of turbochargers for force induction of internal
combustion engines has increased. Actually, the trend in diesel engines is to downsize the …