Abstract
The flow in a vaned diffuser radial pump is fully turbulent and strongly unsteady, caused by the rotor-stator interaction. In this paper, two-dimensional laser Doppler velocimetry (LDV) measurement results have been utilized to investigate the unsteady flow in a low specific speed radial diffuser pump with leaning impeller trailing edges. CFD simulations have been also conducted to provide more extensive results at different flow rates. The analysis has been mainly focused on the flow in the radial gap region between the impeller and diffuser where the unsteady interaction is the strongest. The velocity and turbulence fields are detailedly examined and quantitatively compared between CFD and LDV as well. In addition, the downstream effect from the impeller rotation has been compared between the leaning and normal trailing edges of the impeller.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
