Stability of viscous long liquid filaments

T.W. Driessen, R.J.M. Jeurissen, H. Wijshoff, H. Wijshoff, F. Toschi, Detlef Lohse

Research output: Contribution to journalArticleAcademicpeer-review

45 Citations (Scopus)

Abstract

We study the collapse of an axisymmetric liquid filament both analytically and by means of a numerical model. The liquid filament, also known as ligament, may either collapse stably into a single droplet or break up into multiple droplets. The dynamics of the filament are governed by the viscosity and the aspect ratio, and the initial perturbations of its surface. We find that the instability of long viscous filaments can be completely explained by the Rayleigh-Plateau instability, whereas a low viscous filament can also break up due to end pinching. We analytically derive the transition between stable collapse and breakup in the Ohnesorge number versus aspect ratio phase space. Our result is confirmed by numerical simulations based on the slender jet approximation and explains recent experimental findings by Castréjon-Pita et al.
Original languageEnglish
Article number062109
Pages (from-to)-
Number of pages7
JournalPhysics of fluids
Volume25
Issue number6
DOIs
Publication statusPublished - 2013

Keywords

  • IR-89938
  • METIS-296782

Fingerprint Dive into the research topics of 'Stability of viscous long liquid filaments'. Together they form a unique fingerprint.

  • Cite this

    Driessen, T. W., Jeurissen, R. J. M., Wijshoff, H., Wijshoff, H., Toschi, F., & Lohse, D. (2013). Stability of viscous long liquid filaments. Physics of fluids, 25(6), -. [062109]. https://doi.org/10.1063/1.4811849