Interaction of the burning spherical droplets in oxygen-enriched turbulent environment

Chong Pyo Cho, Ho Young Kim, Sam S. Yoon

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Three-dimensional numerical studies on the interaction of vaporizing and burning droplets were conducted to understand the burning characteristics of multiple droplets in a turbulent environment. The burning droplets characteristics, such as lifetime, surface temperature, vaporization, reaction, and burning rate were examined for various oxygen mole-fractions and geometrical arrangements of droplets. Results from a single droplet combustion test were first verified and validated against existing experimental data. Results indicate that turbulent intensity has a moderate effect on droplet burning rate, but not as prominent an effect as the oxygen mole-fraction. At high oxygen mole-fractions, droplet lifetime was short due to enhanced burning. It is shown that evaporation processes of multiple droplets are notably affected by the inter-space distance between droplets both in streamwise and spanwise directions. The burning rate as a function of oxygen mole-fraction and inter-space distance is determined and can be used as a guideline for future studies on spray combustion.

Original languageEnglish
Pages (from-to)14-24
Number of pages11
JournalCombustion and Flame
Volume156
Issue number1
DOIs
Publication statusPublished - 2009 Jan

Keywords

  • Droplet inter-space distance
  • Droplet interaction
  • Oxygen mole-fraction

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Fuel Technology
  • Energy Engineering and Power Technology
  • Physics and Astronomy(all)

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