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Models and Characteristics of Freezing Rain and Freezing Drizzle for Aircraft Icing Applications.

PB2010107339

Publication Date	2010
Personal Author	Jeck, R. K.
Page Count	113
Abstract	A large, new database of in-flight measurements of icing-related cloud and atmospheric variables in freezing rain and freezing drizzle conditions is used to help determine the range of temperatures, altitudes, exposure durations, icing intensities, precipitation drop sizes, and supercooled water concentrations to which aircraft could be exposed during flight in these conditions. In addition, three different models of cloud and precipitation drop size distributions are proposed for use in computing ice accretion rates and amounts on aircraft components or as a guide for designing water sprays to simulate freezing rain or freezing drizzle in icing wind tunnels or icing spray rigs.
Keywords	Aircraft Freezing rain In-flight measurements Deicing systems Freezing
Source Agency	Department of Transportation Federal Aviation Administration
Corporate Authors	William J. Hughes Technical Center, Atlantic City, NJ. Airport and Aircraft Safety Research and Development.; Federal Aviation Administration, Washington, DC.
Supplemental Notes	Sponsored by Federal Aviation Administration, Washington, DC.
Document Type	Technical Report
Title Note	Final rept.
NTIS Issue Number	201013

Models and Characteristics of Freezing Rain and Freezing Drizzle for Aircraft Icing Applications.

Models and Characteristics of Freezing Rain and Freezing Drizzle for Aircraft Icing Applications.
PB2010107339

Publication Date	2010
Personal Author	Jeck, R. K.
Page Count	113
Abstract	A large, new database of in-flight measurements of icing-related cloud and atmospheric variables in freezing rain and freezing drizzle conditions is used to help determine the range of temperatures, altitudes, exposure durations, icing intensities, precipitation drop sizes, and supercooled water concentrations to which aircraft could be exposed during flight in these conditions. In addition, three different models of cloud and precipitation drop size distributions are proposed for use in computing ice accretion rates and amounts on aircraft components or as a guide for designing water sprays to simulate freezing rain or freezing drizzle in icing wind tunnels or icing spray rigs.
Keywords	Aircraft Freezing rain In-flight measurements Deicing systems Freezing
Source Agency	Department of Transportation Federal Aviation Administration
Corporate Authors	William J. Hughes Technical Center, Atlantic City, NJ. Airport and Aircraft Safety Research and Development.; Federal Aviation Administration, Washington, DC.
Supplemental Notes	Sponsored by Federal Aviation Administration, Washington, DC.
Document Type	Technical Report
Title Note	Final rept.
NTIS Issue Number	201013