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Effect of Boundary-Layer Bleed Hole Inclination Angle and Scaling on Flow Coefficient BehaviorPhase II data results of the Fundamental Inlet Bleed Experiments study at NASA Glenn Research Center are presented which include flow coefficient behavior for 21 bleed hole configurations. The bleed configurations are all round holes with hole diameters ranging from 0.795 to 6.35 mm, hole inclination angles from 20deg to 90deg, and thickness-to-diameter ratios from 0.25 to 2.0. All configurations were tested at a unit Reynolds number of 2.46 10(exp 7)/m and at discrete local Mach numbers of 1.33, 1.62, 1.98, 2.46, and 2.92. Interactions between the design parameters of hole diameter, hole inclination angle, and thickness-to-diameter as well as the interactions between the flow parameters of pressure ratio and Mach number upon the flow coefficient are examined, and a preliminary statistical model is proposed. An existing correlation is also examined with respect to this data.
Document ID
20130011041
Document Type
Technical Memorandum (TM)
Authors
Eichorn, Michael B.
(Case Western Reserve Univ. Cleveland, OH, United States)
Barnhart, Paul J.
(Case Western Reserve Univ. Cleveland, OH, United States)
Davis, David O.
(NASA Glenn Research Center Cleveland, OH, United States)
Vyas, Manan A.
(NASA Glenn Research Center Cleveland, OH, United States)
Slater, John W.
(NASA Glenn Research Center Cleveland, OH, United States)
Date Acquired
August 27, 2013
Publication Date
February 1, 2013
Subject Category
Aerodynamics
Report/Patent Number
E-18617
AIAA Paper 2013-0424
NASA/TM-2013-217843
Meeting Information
51st Aerospace Science Conference(Grapevine, TX)
Funding Number(s)
WBS: WBS 984754.02.07.03.13.02
Distribution Limits
Public
Copyright
Public Use Permitted.

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