Numerical Study of the Tip Clearance Flow Development in a Propulsion Pump Stage PUBLIC ACCESS

[+] Author Affiliations
Yu-Tai Lee

Naval Surface Warfare Center, Bethesda, MD

Chunill Hah

NASA Lewis Research Center, Cleveland, OH

James Loellbach

ICOMP/NASA Lewis Research Center, Cleveland, OH

Paper No. 96-TA-041, pp. V001T08A008; 8 pages
  • ASME 1996 Turbo Asia Conference
  • ASME 1996 Turbo Asia Conference
  • Jakarta, Indonesia, November 5–7, 1996
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7877-4
  • Copyright © 1996 by ASME


This paper summarizes a numerical investigation of the fundamental structure of the rotor tip-clearance vortex and its interaction with a passage trailing-edge vortex in a single-stage stator-rotor pump. The flow field of a highly-loaded rotor measured in a high Reynolds number pump facility (HIREP) is used for comparison. The numerical solution was obtained by solving the three-dimensional Reynolds averaged Navier-Stokes equations. The calculated results are visualized in order to understand the details of the tip-vortex structure. The study shows that the tip geometry should be accurately represented to predict the tip-vortex structure correctly.

Copyright © 1996 by ASME
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