Measurements of rotor stalling in a matched and a mismatched multistage compressor
Name
42396315.pdf
Size
3.06 MB
Format
Adobe PDF
Checksum (MD5)
1e523f5e6eff1d1cf351c2ddcd792e13
Author(s)
Silkowski, Peter D. (Peter Daniel)
Date Issued
1995
Publisher
Cambridge, Mass. : Gas Turbine Laboratory, Massachusetts Institute of Technology, [1995]
Series/Report no.
GTL-221
GTL report #221
Abstract
This paper presents the results from a set of experiments on stall inception in multistage axial flow compressors. The experiments were tailored to investigate phenomena having a wide range of time and length scales. This range of scales was motivated by two previously observed paths to stall. Parametric changes such as tip clearance, inlet distortion and mismatch were carried out to demonstrate the importance of component coupling in the stall inception process. Evidence is presented for the importance of the local compressor characteristic in determining where and when the initiation of the stall inception process will occur. Although the stall inception process may begin as a localized event, its growth into rotating stall is governed by the environment established by the coupling of the various compression system components. Finally, the tip flow field, specifically the rotor tip leakage jet, is shown to be a key feature in the stall inception process.
Description
April 1995
Includes bibliographical references (page 21)
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