Rear-Surface Deformation of a Water Drop in Aero-Breakup of Shear Mode

Xiang Yu Yi, Yu Jian Zhu, Ji Ming Yang, Tun Wang, Ming Yu Sun

Research output: Contribution to journalArticle

Abstract

Deformation of water drops in shock-induced high-speed flows is investigated with a focus to the influence of primitive flow parameters on the rear-surface deformation features. Two typical deformation patterns are discovered through high-speed photography. A simple equation to evaluate the radial acceleration of the drop surface is derived. The combined use of this equation and outer flow simulation makes it possible for us to reconstruct the profles of the early deformed drops. The results agree well with the experiments. Further analysis shows that the duration of flow establishment with respect to the overall breakup time shapes the rear side profle of the drop. Thereby the ratio of the two times, expressed as the square root of the density ratio, appears to be an effective indicator of the deformation features.

Original languageEnglish
Article number084701
JournalChinese Physics Letters
Volume34
Issue number8
DOIs
Publication statusPublished - 2017 Jul

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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