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Unsteady stator response to upstream rotor wakesThe results are presented of an investigation of the unsteady pressures generated on a stator due to its interaction with the wakes shed by an upstream rotor. The influence of stator solidity, incidence flow angle and rotor/stator spacing are discussed. The results show that the major influence is due to stator solidity, particularly at large values of incidence angle. Comparisons of the measured data with an existing unsteady cascade analysis show similar trends in the chordwise variation of the predicted and measured unsteady pressure difference across the blades. Comparisons with an isolated airfoil analysis indicate the influence of solidity and unsteady blade-to-blade interaction. All comparisons were conducted for an incompressible flow with a reduced frequency of approximately 5.0.
Document ID
19790042932
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Franke, G. F.
(Allis-Chalmers Corp. York, Pa., United States)
Henderson, R. E.
(Pennsylvania State University University Park, Pa., United States)
Date Acquired
August 9, 2013
Publication Date
March 1, 1979
Subject Category
Acoustics
Report/Patent Number
AIAA PAPER 79-0579
Meeting Information
Meeting: American Institute of Aeronautics and Astronautics, Aeroacoustics Conference
Location: Seattle, WA
Start Date: March 12, 1979
End Date: March 14, 1979
Sponsors: American Institute of Aeronautics and Astronautics
Accession Number
79A26945
Funding Number(s)
CONTRACT_GRANT: NGR-39-009-275
Distribution Limits
Public
Copyright
Other

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