Unsteady Aerodynamic Interactions in a Multistage Compressor

[+] Author and Article Information
V. R. Capece, S. Fleeter

Thermal Sciences and Propulsion Center, School of Mechanical Engineering, Purdue University, West Lafayette, IN 47907

J. Turbomach 109(3), 420-428 (Jul 01, 1987) (9 pages) doi:10.1115/1.3262122 History: Received February 17, 1987; Online November 09, 2009


The fundamental flow physics of multistage blade row interactions is experimentally investigated, with unique data obtained which quantify the unsteady harmonic aerodynamic interaction phenomena. In particular, a series of experiments is performed in a three-stage axial flow research compressor over a range of operating and geometric conditions at high reduced frequency values. The multistage unsteady interaction effects of the following on each of the three vane rows are investigated: (1) the steady vane aerodynamic loading, (2) the waveform of the aerodynamic forcing function to each vane row, including both the chordwise and traverse gust components.

Copyright © 1987 by ASME
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