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

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

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)


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
Issue number1
Publication statusPublished - 2009 Jan

Bibliographical note

Funding Information:
This research was supported by a Korea University Grant (2007). Special thanks is extended to Dr. Scott C. James of Sandia National Laboratories' Thermal/Fluid Science & Engineering Department and an anonymous reviewers for many helpful suggestions that improved the flow and readability of this manuscript.

Copyright 2009 Elsevier B.V., All rights reserved.


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

ASJC Scopus subject areas

  • General Chemistry
  • General Chemical Engineering
  • Fuel Technology
  • Energy Engineering and Power Technology
  • General Physics and Astronomy


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