Modelling spray impingement using linear stability theories for droplet shattering

Suk Goo Yoon, P. E. DesJardin

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

This paper compares several linear-theory-based models for droplet shattering employed for simulations of spray impingement on flat wall surface or a circular cylinder. Numerical simulations are conducted using a stochastic separated flow (SSF) technique that includes sub-models for droplet dynamics and impact. Results for spray impingement over a flat wall indicate that the linear theory applicable for a single droplet impact over-predicts the number of satellite (or secondary) droplets upon shattering when compared to experimental data. The causes for the observed discrepancies are discussed. Numerical simulation results for spray impingement over a circular cylinder in cross flow are obtained and discussed.

Original languageEnglish
Pages (from-to)469-489
Number of pages21
JournalInternational Journal for Numerical Methods in Fluids
Volume50
Issue number4
DOIs
Publication statusPublished - 2006 Feb 10

Keywords

  • Distribution
  • Droplet
  • Finger
  • Impact
  • Linear theories
  • Satellite
  • Seconday instability
  • Shattering
  • Splashing
  • Spray

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Safety, Risk, Reliability and Quality
  • Applied Mathematics
  • Computational Theory and Mathematics
  • Computer Science Applications
  • Computational Mechanics
  • Mechanics of Materials

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