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Update on the NASA Glenn Propulsion Systems Lab Icing and Ice Crystal Cloud Characterization (2017)NASA Glenn's Propulsion Systems Lab, an altitude engine test facility, generates icing clouds with a spray system. While the spray system is used mostly to create ice crystal clouds (Appendix D/P), the 2017 cloud characterization effort added the requirement to produce exactly supercooled liquid clouds in Appendix C and Appendix O. Success was demonstrated to supercool the largest drops at the warmest conditions, but not freeze out the smallest drops at the coldest conditions. This paper documents primarily the total water content characterization methodology and results from an Iso-Kinetic Probe in ice crystals and Multi-Wire sensor in supercooled liquid, along with the cloud uniformity provided by light extinction tomography. Particle size distribution results from High Speed Imaging probes and a Phase Doppler Interferometer are discussed. Also, a new numerical model for tracking the thermodynamics of the air-drop interactions in PSL from the plenum toward the cloud characterization plane are noted. Both of these latter topic are more fully documented in companion papers.
Document ID
Document Type
Conference Paper
Van Zante, Judith F.
(NASA Glenn Research Center Cleveland, OH, United States)
Ratvasky, Thomas P.
(NASA Glenn Research Center Cleveland, OH, United States)
Bencic, Timothy J.
(HX5 Sierra, LLC Cleveland, OH, United States)
Challis, Clark C.
(HX5 Sierra, LLC Cleveland, OH, United States)
Timko, Emily N.
(Jacobs Technology, Inc. Cleveland, OH, United States)
Woike, Mark R.
(NASA Glenn Research Center Cleveland, OH, United States)
Date Acquired
September 12, 2018
Publication Date
June 25, 2018
Subject Category
Research And Support Facilities (Air)
Report/Patent Number
Meeting Information
AIAA AVIATION Forum(Atlanta, GA)
Funding Number(s)
WBS: WBS 432938.
Distribution Limits
Public Use Permitted.
Engine Icing
Ice Clouds
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