...Fan Zhang; Ke Chen; Desmond Appiah; Shouqi Yuan; Kofi Asamoah Adu-Poku; Feng Hong To investigate the unsteady flow characteristics in side channel pumps, the vortex structures and their evolutions in the impeller and side channel flow passages have been comprehensively studied. Systematically...

... and radial force in a low-specific-speed centrifugal pump by using the detached-eddy simulation method. We also performed a vibration displacement experiment on the shaft of the centrifugal pump. The vortex identification method was introduced to clarify the internal correlation between unsteady flow...

...-mail:  loic.pora@safrangroup.com 18 05 2020 29 07 2020 28 08 2020 axial inducer cavitation degassing dissolved CO 2 two-phase flow partial flow rates vortex Inducers are axial turbomachines placed upstream on the same drive shaft of the impeller in centrifugal pumps...

... structures at intermediate depths and vortex structures within and downstream of the cavity. elliptical cavity flow structure separated shear layer vortex particle image velocimetry (PIV) The flow over cavities (surface cut-outs) forms part of the aerodynamics of aircraft and road vehicles...

...  > 200 (based on pipe flow Reynolds number) and a weak primary vortex appears near the wall of the inner disc. The occurrence of flow separation and the size of the flow vortices increases with both the Reynolds number Re and clearance between the tow disc h/d. When Re  > 1200 and h/d  = 0.22...

.... Starting vortices from these unsteady devices dominate the flowfield and control to a great extent the level of the thrust augmentation. Therefore, it is of fundamental interest to understand the geometric influences on the starting vortex and how these manifest themselves in augmenter/ejector performance...

... the flow rate is decreased, the backflow region extends upstream and may cause various problems by interacting with upstream elements. It is also known that the backflow vortex structure occurs in the shear layer between the main flow and the swirling backflow. Experimental studies on the backflow from...

... the surfactant solution has viscoelasticity, interesting flow characteristics are obtained. The decay of swirl, the vortex type and the turbulence intensity are discussed, compared with the swirling flow of the water. As the results, it is concluded that the change from Rankin’s combined vortex to the forced...