Transient effects in ice nucleation of a water drop impacting onto a cold substrate

Markus Schremb, Ilia V. Roisman*, Cameron Tropea

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

60 Citations (Scopus)


The impact of water drops onto a solid surface at subfreezing temperatures has been experimentally studied. Drop nucleation has been observed using a high-speed video system. The statistics of nucleation allows the estimation of the average number of nucleation sites per unit area of the wetted part of the substrate. We have discovered that the nucleation rate in the impacting drop is not constant. The observed significant increase of the nucleation rate at small times after impact t<50 ms can be explained by the generation of nanobubbles at early times of drop impact. These bubbles serve as additional nucleation sites and enhance the nucleation rate.
Original languageEnglish
Article number022805
JournalPhysical Review E
Issue number2
Early online date23 Feb 2017
Publication statusPublished - Feb 2017
Externally publishedYes


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