LABORATORY EXPERIMENTS ON ICING OF ROTATING BLADES

Experiments have been conducted to provide a basis for a computer model that simulates atmospheric ice accretion on a rotating blade. A comparison of the computer model simulation and experimental results reveals that general agreement exists within the temperature range 0 deg C to -25 deg C and the velocity range 0 to 60 m/s. Beyond 60 m/s the computer simulation over-predicts the thickness of the ice accretion at the leading edge. Possible explanations for this observation are that beyond 60 m/s and in the wet growth regime the centrifugal forces experienced by the collected liquid water are a major contributing factor to water migration and shedding and therefore loss of liquid water and accreted ice. Also, there may be a significant loss in the collection efficiency at higher velocity due to turbulence developed by the proximity of the tip of the rotor. Below -25 deg C the simulation and experimental results disagree in that the simulation significantly overpredicts the thickness of the accretion at the leading edge. The possible explanation for the difference is that the effective liquid water content is suppressed due to increased ice particles in the air at these lower temperatures. /Authors/

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    • This paper appeared in TRB Special Report 185, Snow Removal and Ice Control Research. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
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    Transportation Research Board

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  • Authors:
    • Ackley, S F
    • Lemieux, G E
    • Itagaki, K
    • O'KEEFE, J
  • Conference:
  • Publication Date: 1979

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  • Media Type: Print
  • Features: Figures; References; Tables;
  • Pagination: pp 85-92
  • Monograph Title: SNOW REMOVAL AND ICE CONTROL RESEARCH
  • Serial:

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Filing Info

  • Accession Number: 00193862
  • Record Type: Publication
  • Files: TRIS, TRB, ATRI, STATEDOT
  • Created Date: Jun 13 1979 12:00AM