Solid Particle Dynamic Behavior Through Twisted Blade Rows

[+] Author and Article Information
A. Hamed

Department of Aerospace Engineering and Applied Mechanics, University of Cincinnati, Cincinnati, Ohio 45221

J. Fluids Eng 106(3), 251-256 (Sep 01, 1984) (6 pages) doi:10.1115/1.3243112 History: Received May 10, 1983; Online October 26, 2009


Particle trajectory calculations provide the essential information required for predicting the pattern and intensity of turbomachinery erosion. Consequently, accurate flow field and blade geometry representation in the trajectory computational model are required to evaluate machine performance deterioration due to erosion. A model is presented that is simple and efficient yet versatile and general, applicable to axial, radial and mixed flow machines, and to inlets, nozzles, return passages and separators. Computations are presented for particle trajectories through a row of twisted vanes in the inlet flow field. The effect of the particle size on trajectory blade impacts, and on particle redistribution and separation are discussed.

Copyright © 1984 by ASME
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