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Additional Investigations of Ice Shape Sensitivity to Parameter VariationsA second parameter sensitivity study was conducted at the NASA Glenn Research Center's Icing Research Tunnel (IRT) using a 36 in. chord (0.91 m) NACA-0012 airfoil. The objective of this work was to further investigate the feasibility of using ice shape feature changes to define requirements for the simulation and measurement of SLD and appendix C icing conditions. A previous study concluded that it was feasible to use changes in ice shape features (e.g., ice horn angle, ice horn thickness, and ice shape mass) to detect relatively small variations in icing spray condition parameters (LWC, MVD, and temperature). The subject of this current investigation extends the scope of this previous work, by also examining the effect of icing tunnel spray-bar parameter variations (water pressure, air pressure) on ice shape feature changes. The approach was to vary spray-bar water pressure and air pressure, and then evaluate the effects of these parameter changes on the resulting ice shapes. This paper will provide a description of the experimental method, present selected experimental results, and conclude with an evaluation of these results.
Document ID
20060011036
Acquisition Source
Glenn Research Center
Document Type
Technical Memorandum (TM)
Authors
Miller, Dean R. (NASA Glenn Research Center Cleveland, OH, United States)
Potapczuk, Mark G. (NASA Glenn Research Center Cleveland, OH, United States)
Langhals, Tammy J. (QSS Group, Inc. Cleveland, OH, United States)
Date Acquired
August 23, 2013
Publication Date
March 1, 2006
Subject Category
Air Transportation And Safety
Report/Patent Number
E-15474
NASA/TM-2006-214227
AIAA Paper 2006-0469
Meeting Information
Meeting: 44th Aerospace Sciences Meeting and Exhibit
Location: Reno, NV
Country: United States
Start Date: January 9, 2006
End Date: January 12, 2006
Sponsors: American Inst. of Aeronautics and Astronautics
Funding Number(s)
WBS: WBS 22-077-41-02
Distribution Limits
Public
Copyright
Public Use Permitted.

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