Analysis of surface roughness generation in aircraft ice accretionPatterns of roughness evolution have been studied analysis of high magnification video observations of accreting ice surfaces provided by the NASA Lewis Research Center. Three distinct patterns of surface roughness generation have been identified within the parametric regions studied. They include: Rime, Multi-Zone Glaze, and Uniform Glaze. Under most icing conditions, a brief period of transient rime ice growth was observed caused by heat conduction into the body. The resulting thin rime layer explains previously observed insensitivity of some ice accretions to substrate insensitivity of some ice accretions to substrate surface chemistry and may provide justification for simplifying assumptions in ice accretion sailing and modeling effects.
Document ID
19920045563
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Hansman, R. J., Jr. (MIT Cambridge, MA, United States)
Reehorst, Andrew (NASA Lewis Research Center Cleveland, OH, United States)
Sims, James (Cortez III Service Corp. Cleveland, OH, United States)