Optics (Oct 2021)

Interferometric Ice Particle Imaging in a Wind Tunnel

  • Mohamed Talbi,
  • Romain Duperrier,
  • Barbara Delestre,
  • Gilles Godard,
  • Marc Brunel

DOI
https://doi.org/10.3390/opt2040020
Journal volume & issue
Vol. 2, no. 4
pp. 216 – 227

Abstract

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We report interferometric ice particle imaging and sizing in an icing wind tunnel with wind speeds of 70 m/s. Single particle interferograms are first analysed, size measurements are performed, and examples of possible reconstructed shapes are deduced from the interferometric images. Particle sizing is also performed in the case of ice particles whose out-of-focus images overlap, with or without Moiré phenomena. Results show that the IPI technique can be carried out for irregular rough particles in a critical environment such as in an icing wind tunnel with high wind speeds.

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