... on the instantaneous and phase-averaged inner structures of the tip flow and evolution of the TLV. Observations are based on series of high resolution planar particle image velocimetry measurements performed in a transparent waterjet pump fitted into an optical refractive index-matched test facility. Velocity...

...Jianjun Feng; Friedrich-Karl Benra; Hans Josef Dohmen The periodically unsteady flow fields in a low specific speed radial diffuser pump have been investigated both numerically and experimentally for the design condition ( Q des ) and also one part-load condition ( 0.5 Q des ) . Three-dimensional...

...Paolo Boncinelli; Roberto Biagi; Antonio Focacci; Umberto Corradini; Andrea Arnone; Marco Bernacca; Massimiliano Borghetti In this paper, the aerodynamic design of a bowl-type diffuser for a low specific-speed pump is presented and described in detail. The main goal was to achieve an optimal...

...Yasushi Tatebayashi; Kazuhiro Tanaka; Toshio Kobayashi The authors have been investigating the various characteristics of screw-type centrifugal pumps, such as pressure fluctuations in impellers, flow patterns in volute casings, and pump performance in air-water two-phase flow conditions. During...

... vanes are the main reason for this finding. 08 May 2000 01 February 2000 gas turbines brakes space vehicles aerodynamics pumps rotational flow swirling flow Fluid induced rotordynamic forces play an important role in modern turbomachinery design. The continued push...