Atomization and flow characteristics of liquid sheet produced by jet impingement

Chihiro Inoue, Toshinori Watanabe, Takehiro Himeno

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Aimingatelucidating the relationship between a liquid sheet atomization and the detailedflowfield inside the sheet produced by an impingement-type injector, numerical computation, experimental observation, and theoretical analysis were performed. A numerical method was developed to examine atomization phenomena. First, the method was verified through quantitative comparison with a corresponding experiment of pinch off. Then, experimental and theoretical analyses were conducted on the atomization of an axisymmetric liquid sheet through Kelvin-Helmholtztype instability, which was produced by two opposing watexr jets. The numerical results showed qualitative resemblance to the corresponding experimental and theoretical analyses. Finally, it was clarified that a nonuniform injection velocity profile resulted in a velocity distribution with an inflection point inside the sheet. As a result, the sheet tended to be unstable and enhanced atomization.

Original languageEnglish
Pages (from-to)1060-1070
Number of pages11
JournalJournal of Propulsion and Power
Volume28
Issue number5
DOIs
Publication statusPublished - 2012

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering
  • Fuel Technology
  • Mechanical Engineering
  • Space and Planetary Science

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