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Simulation of VSPT Experimental Cascade Under High and Low Free-Stream Turbulence ConditionsVariable-Speed Power Turbines (VSPT) for rotorcraft applications operate in conditions of low Reynolds number and a wide range in incidence resulting from rotational speed variation. A comprehensive data set obtained in a linear cascade which includes the effects of Reynolds number, free-stream turbulence and incidence is now available and this paper concerns itself with the post-diction of boundary layer transitionseparation, blade pressure loading and total pressure loss pertaining to the conditions set for measurements in that data set. The distinction between the state of the measured data presented here and the earlier publications is the addition of high free-stream turbulence intensity. We will, for the purposes of the numerical post-diction, present some of the higher free stream turbulence data in this paper but defer a comprehensive presentation and treatment of the measured data will be done elsewhere.
Document ID
20140017394
Acquisition Source
Glenn Research Center
Document Type
Presentation
Authors
Ameri, Ali A.
(Ohio State Univ. Cleveland, OH, United States)
Giel, Paul W.
(Vantage Partners, LLC Brook Park, OH, United States)
Flegel, Ashlie
(NASA Glenn Research Center Cleveland, OH, United States)
Date Acquired
December 16, 2014
Publication Date
July 1, 2014
Subject Category
Aircraft Propulsion And Power
Report/Patent Number
GRC-E-DAA-TN16793
Meeting Information
Meeting: AIAA Joint Propulsion Conference
Location: Cleveland, OH
Country: United States
Start Date: July 28, 2014
End Date: July 30, 2014
Sponsors: American Inst. of Aeronautics and Astronautics, American Society of Mechanical Engineers, Society of Automotive Engineers, Inc., American Society for Electrical Engineers
Funding Number(s)
WBS: WBS 877868.02.07.03.01.02.01
CONTRACT_GRANT: NNC12BA01B
Distribution Limits
Public
Copyright
Public Use Permitted.
Keywords
power turbine
turbulence modeling
low pressure trubine
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