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A Separation Control CFD Validation Test CaseLow speed flow separation over a wall-mounted hump, and its control using steady suction, were studied experimentally in order to generate a data set for a workshop aimed at validating CFD turbulence models. The baseline and controlled data sets comprised static and dynamic surface pressure measurements, flow field measurements using Particle Image Velocimetry (PIV) and wall shear stress obtained via oil-film interferometry. In addition to the specific test cases studied, surface pressures for a wide variety of conditions were reported for different Reynolds numbers and suction rates. Stereoscopic PIV and oil-film flow visualization indicated that the baseline separated flow field was mainly two- dimensional. With the application of control, some three-dimensionality was evident in the spanwise variation of pressure recovery, reattachment location and spanwise pressure fluctuations. Part 2 of this paper, under preparation for the AIAA Meeting in Reno 2005, considers separation control by means of zero-efflux oscillatory blowing.
Document ID
20040082231
Acquisition Source
Langley Research Center
Document Type
Conference Paper
Authors
Greenblatt, David
(NASA Langley Research Center Hampton, VA, United States)
Paschal, Keith B.
(NASA Langley Research Center Hampton, VA, United States)
Yao, Chung-Sheng
(NASA Langley Research Center Hampton, VA, United States)
Harris, Jerome
(NASA Langley Research Center Hampton, VA, United States)
Schaeffler, Norman W.
(NASA Langley Research Center Hampton, VA, United States)
Washburn, Anthony E.
(NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 21, 2013
Publication Date
January 1, 2004
Subject Category
Fluid Mechanics And Thermodynamics
Report/Patent Number
AIAA Paper 2004-2220-Pt-1
Meeting Information
Meeting: 2nd AIAA Flow Control Conference
Location: Portland, OR
Country: United States
Start Date: June 28, 2004
End Date: July 1, 2004
Sponsors: American Inst. of Aeronautics and Astronautics
Distribution Limits
Public
Copyright
Public Use Permitted.
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