Analytical criterion for droplet breakup

I. Sher, E. Sher

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


We studied the problem of a liquid droplet in a high-speed trajectory through ambient gas. The fate of such a droplet is of importance to the overall spray characteristics, in the context of secondary breakup. A theoretical analysis of the problem is presented in which we examine an overall energy balance that includes surface and dissipation energies. Transformation between a droplet to its breakup products under trajectory conditions that include drag forces is a spontaneous process that occurs at a characteristic finite time. The transformation involves reversible surface energy transitions and irreversible viscous dissipation energy. The results provide a simple algebraic equation that shows the inter-relationships between the pertinent parameters and constitutes the minimum essential conditions for droplet breakup.

Original languageEnglish
Pages (from-to)1059-1063
Number of pages5
JournalAtomization and Sprays
Issue number12
StatePublished - 1 Dec 2011


  • Breakup limit
  • Droplet
  • Secondary breakup

ASJC Scopus subject areas

  • Chemical Engineering (all)


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