Controlled diffusion compressor blade wake measurements
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Authors
Dreon, John W., Jr.
Subjects
Controlled diffusion
Compressor blade
Wake measurements
Velocity profiles
Compressor blade
Wake measurements
Velocity profiles
Advisors
Shreeve, Raymond P.
Date of Issue
1986-09
Date
September 1986
Publisher
Language
en_US
Abstract
A controlled-diffusion compressor stator blade-element design was re-tested in an academic cascade wind tunnel to obtain data with which to assess viscous computational prediction methods. Tests were conducted near design and toward stall conditions at Mach 0.28 and Reynolds number of 774000. Loss coefficient, diffusion factor and AVDR were determined by mass averaging pneumatic pressure probe survey measurements. Wake velocity profiles were measured from 0.12 to 1.77 chordlengths downstream. Concentration was placed on the verifications of accuracy by careful calibration, multiplicity and exchange of survey probes. Experimental results showed that losses were dependent on Reynolds number and that all blade-element performances were independent of the downstream axial location at which they were determined.
Type
Thesis
Description
Series/Report No
Department
Department of Aeronautics
Organization
Naval Postgraduate School (U.S.)
Identifiers
NPS Report Number
Sponsors
Funding
Format
138 p.
Citation
Distribution Statement
Approved for public release; distribution is unlimited.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.