Effect of AFT Rotor on the Inter-Rotor Flow of an Open Rotor Propulsion SystemThe effects of the aft rotor on the inter-rotor flow field of an open rotor propulsion rig were examined. A Particle Image Velocimetry (PIV) dataset that was acquired phase locked to the front rotor position has been phase averaged based on the relative phase angle between the forward and aft rotors. The aft rotor phase was determined by feature tracking in raw PIV images through an image processing algorithm. The effect of the aft rotor potential field on the inter-rotor flow were analyzed and shown to be in good agreement with Computational Fluid Dynamics (CFD) simulations. It was shown that the aft rotor had no substantial effect on the position of the forward rotor tip vortex but did have a small effect on the circulation strength of the vortex when the rotors were highly loaded.
Document ID
20160007560
Acquisition Source
Glenn Research Center
Document Type
Conference Paper
Authors
Slaboch, Paul E. (Saint Martin's Coll. Lacey, WA, United States)
Stephens, David B. (NASA Glenn Research Center Cleveland, OH United States)
Van Zante, Dale E. (NASA Glenn Research Center Cleveland, OH United States)
Date Acquired
June 15, 2016
Publication Date
June 13, 2016
Subject Category
Fluid Mechanics And ThermodynamicsAircraft Propulsion And Power
Report/Patent Number
GT2016-56392GRC-E-DAA-TN28382
Meeting Information
Meeting: ASME/Turbo Expo 2016
Location: Seoul
Country: Korea, Republic of
Start Date: June 13, 2016
End Date: June 17, 2016
Sponsors: American Society of Mechanical Engineers