Particulate Flow Solutions Through Centrifugal Impeller With Two Splitters PUBLIC ACCESS

[+] Author Affiliations
Salah Elfeki, Widen Tabakoff

University of Cincinnati, Cincinnati, OH

Paper No. 86-GT-130, pp. V002T04A005; 10 pages
  • ASME 1986 International Gas Turbine Conference and Exhibit
  • Volume 2: Aircraft Engine; Marine; Microturbines and Small Turbomachinery
  • Dusseldorf, West Germany, June 8–12, 1986
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7929-0
  • Copyright © 1986 by ASME


Centrifugal impeller with splitters is one of the design techniques used in small engines. Many such engines are operating in different environmental conditions. One of which is where the atmosphere is polluted by small solid particles. Engines operating in such particulate environment are exposed to erosion and performance deterioration.

In this paper the flow field through an impeller with two different size splitters is presented. The mean streamline pattern in the meridional plane was estimated by the computer code ‘MERDIL’, and an improved panel method was used to calculate the blade-to-blade flow solution. In addition, the particle trajectories were calculated by direct integration of the particle equations of motion. Particle collisions with the blade, hub and casing surfaces were determined. The data obtained from this analysis can be applied for calculating the erosion and performance deterioration in turbomachinery with such impellers.

Copyright © 1986 by ASME
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