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Interaction of fan rotor flow with downstream strutsThe detailed unsteady pressure field produced on the rotor blades of an axial-flow fan by interaction with downstream struts was investigated. The experimental arrangement was similar to that found in the fan casings of turbofan aircraft engines. Acoustically significant pressure fluctuations were measured on both thy suction and pressure sides of the rotor blades for several positions of the downstream struts. The level of the observed interaction decreased with increased spacing of the struts behind the rotor. An inviscid flow analysis for the disturbance level is compared with trends of the measured results.
Document ID
19830044694
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Obrien, W. F., Jr. (Virginia Polytechnic Inst. and State Univ. Blacksburg, VA, United States)
Reimers, S. L. (Virginia Polytechnic Inst. and State Univ. Blacksburg, VA, United States)
Richardson, S. W. (Virginia Polytechnic Institute and State University Blacksburg, VA, United States)
Date Acquired
August 11, 2013
Publication Date
April 1, 1983
Subject Category
Aircraft Propulsion And Power
Report/Patent Number
AIAA PAPER 83-0682
Meeting Information
Meeting: American Institute of Aeronautics and Astronautics, Aeroacoustics Conference
Location: Atlanta, GA
Start Date: April 11, 1983
End Date: April 13, 1983
Sponsors: American Institute of Aeronautics and Astronautics
Accession Number
83A25912
Funding Number(s)
CONTRACT_GRANT: NAG1-156
Distribution Limits
Public
Copyright
Other

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