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Empirical Look at Tolerances in Setting Icing Test Conditions with Particular Application to Icing Similitude.


ADA198941

Publication Date 1988
Personal Author Bartlett, C. S.
Page Count 57
Abstract An investigation was conducted of the requirements for setting icing test conditions for aircraft engine certification tests. Experimental data were gathered and analyzed to determine how much each of the ice scaling parameters could be allowed to deviate from specified conditions without affecting the similarity of the ice accretions. Also studied were how changes in the ice scaling parameters and changes in the icing test conditions themselves affected the resulting ice shapes. The results indicate that 1) icing similitude criteria must be established in advance of the test; 2) changes in the scaling parameters do not necessarily indicate a change in the ice shape; 3) experimental data are useful in determining allowable changes in the icing test conditions; 4) determination of allowable tolerances for icing test parameters will depend on which icing regime one is operating in; and 5) scaling laws used in this report cannot solely be used to determine tolerances in setting icing test conditions. Keywords: Aircraft icing, Aircraft engine icing, Icing similitude, Ice scaling law, Icing tests. (edc)
Keywords
  • Aircraft
  • Ice formation
  • Test methods
  • Aircraft engines
  • Analogies
  • Experimental data
  • Ice
  • Parameters
  • Performance tests
  • Scaling factors
  • Setting(Adjusting)
  • Shape
  • Tolerance
Source Agency
  • Non Paid ADAS
  • Department of Transportation Federal Aviation Administration
NTIS Subject Category
  • 51B - Aeronautics
  • 48H - Snow, Ice, & Permafrost
Corporate Authors Arnold Engineering Development Center, Arnold AFS, TN.; Federal Aviation Administration Technical Center, Atlantic City, NJ.
Document Type Technical Report
Title Note Final rept. Apr 86-Jan 87,
NTIS Issue Number 198902
Empirical Look at Tolerances in Setting Icing Test Conditions with Particular Application to Icing Similitude.
Empirical Look at Tolerances in Setting Icing Test Conditions with Particular Application to Icing Similitude.
ADA198941

  • Aircraft
  • Ice formation
  • Test methods
  • Aircraft engines
  • Analogies
  • Experimental data
  • Ice
  • Parameters
  • Performance tests
  • Scaling factors
  • Setting(Adjusting)
  • Shape
  • Tolerance
  • Non Paid ADAS
  • Department of Transportation Federal Aviation Administration
  • 51B - Aeronautics
  • 48H - Snow, Ice, & Permafrost
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