Numerical simulation on the behavior of a liquid jet into an air flow

Takao Inamura, Takehito Tsutagawa, Seong Jin Cho, Goro Masuya

Research output: Contribution to journalArticle

Abstract

A numerical simulation has been performed to clarify the effects of turbulence in a liquid on the deformation of the liquid jet surface into an air flow. The turbulences in the liquid jet were simulated by the Rankin vortices, and the liquid jet surface was tracked numerically by the volume of fluid method. By numerical simulations, the onset of the protrusions on the liquid jet surface is caused by the vortices in the liquid, and the surrounding air flow plays an important role in the amplification of the protrusions. The amplification rate of the trough displacement is proportional to the air-to-liquid velocity ratio. At large imposed vortex intensities, the trough displacement increases with the vortex intensity. On the other hand, at small imposed vortex intensities, the amplification of the trough displacement is also affected by factors other than vortex intensity.

Original languageEnglish
Pages (from-to)473-484
Number of pages12
JournalHeat Transfer - Asian Research
Volume30
Issue number6
DOIs
Publication statusPublished - 2001 Sep 1

Keywords

  • Disintegration mechanism
  • Instability
  • Liquid jet
  • Numerical simulation
  • Rocket injector
  • Twin-fluid atomization

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Fluid Flow and Transfer Processes

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