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Assessment of passive porosity with free and fixed separation on a tangent ogive forebodySubsonic wind tunnel tests were performed on solid and porous (22 percent) 5.0-caliber forebody models to assess the effect of free and fixed cross-flow separation on the effectiveness of passive porosity. The effectiveness of passive porosity to control the local pressure loading for forced cross-flow separation is found to be similar to that observed for the free cross-flow separation condition. It is also found that the effectiveness of passive porosity is significantly enhanced in the presence of large positive pressures on the porous surface.
Document ID
19920072739
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Wood, Richard M. (NASA Langley Research Center Hampton, VA, United States)
Banks, Daniel W. (NASA Langley Research Center Hampton, VA, United States)
Bauer, Steven X. S. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1992
Subject Category
Aircraft Stability And Control
Report/Patent Number
AIAA PAPER 92-4494
Report Number: AIAA PAPER 92-4494
Meeting Information
Meeting: AIAA Atmospheric Flight Mechanics Conference
Location: Hilton Head Island, SC
Country: United States
Start Date: August 10, 1992
End Date: August 12, 1992
Accession Number
92A55363
Distribution Limits
Public
Copyright
Other

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