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Calculation of unsteady fan rotor response caused by downstream flow distortionsThe present model for fan rotor/support strut airfoil interaction uses a time-marching code for the rotor flow, coupled with a potential flow model for the stator-strut region. Study of the effect of strut design variables indicates that rotor flow disturbance is increased by the primary variables of larger strut thickness and circumferential spacing, while decreasing exponentially with increased rotor-strut separation. The time-marching code predicts local rotor pressure and flow perturbations in response to an unsteady downstream boundary condition.
Document ID
19850031809
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Obrien, W. F.
(Virginia Polytechnic Inst. and State Univ. Blacksburg, VA, United States)
Richardson, S. M.
(Virginia Polytechnic Inst. and State Univ. Blacksburg, VA, United States)
Ng, W. F.
(Virginia Polytechnic Institute and State University Blacksburg, VA, United States)
Date Acquired
August 12, 2013
Publication Date
October 1, 1984
Subject Category
Aerodynamics
Report/Patent Number
AIAA PAPER 84-2282
Accession Number
85A13960
Funding Number(s)
CONTRACT_GRANT: NAG1-156
Distribution Limits
Public
Copyright
Other

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