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CFD Technology for Rotorcraft Gearbox Windage Aerodynamics SimulationA computational fluid dynamics (CFD) method is adapted, validated and applied to spinning gear systems with emphasis on predicting windage losses. Several spur gears and a disc are studied. The CFD simulations return good agreement with measured windage power loss. Turbulence modeling choices, the relative importance of viscous and pressure torques with gear speed and the physics of the complex 3-D unsteady flow field in the vicinity of the gear teeth are studied.
Document ID
20120016625
Acquisition Source
Glenn Research Center
Document Type
Reprint (Version printed in journal)
Authors
Handschuh, Robert
(NASA Glenn Research Center Cleveland, OH, United States)
Hill, Matthew
(Pennsylvania State Univ. University Park, PA, United States)
Kunz, Robert
(Pennsylvania State Univ. University Park, PA, United States)
Long, Lyle
(Pennsylvania State Univ. University Park, PA, United States)
Morris, Philip
(Pennsylvania State Univ. University Park, PA, United States)
Noack, Ralph
(Pennsylvania State Univ. University Park, PA, United States)
Date Acquired
August 26, 2013
Publication Date
August 1, 2009
Subject Category
Fluid Mechanics And Thermodynamics
Meeting Information
Meeting: American Helicopter Society 64th Anllual Forum
Location: Montreal
Country: Canada
Start Date: April 29, 2008
End Date: May 1, 2008
Funding Number(s)
WBS: WBS 877868.02.07.03.01.01.01
CONTRACT_GRANT: NNX07AB34A
Distribution Limits
Public
Copyright
Other

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