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 language | English |
|---|---|
| Pages (from-to) | 14-24 |
| Number of pages | 11 |
| Journal | Combustion and Flame |
| Volume | 156 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2009 Jan 1 |
Fingerprint
Keywords
- Droplet inter-space distance
- Droplet interaction
- Oxygen mole-fraction
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Chemical Engineering(all)
- Energy Engineering and Power Technology
- Fuel Technology
- Chemistry(all)
Cite this
Interaction of the burning spherical droplets in oxygen-enriched turbulent environment. / Cho, Chong Pyo; Kim, Ho Young; Yoon, Suk Goo.
In: Combustion and Flame, Vol. 156, No. 1, 01.01.2009, p. 14-24.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Interaction of the burning spherical droplets in oxygen-enriched turbulent environment
AU - Cho, Chong Pyo
AU - Kim, Ho Young
AU - Yoon, Suk Goo
PY - 2009/1/1
Y1 - 2009/1/1
N2 - 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.
AB - 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.
KW - Droplet inter-space distance
KW - Droplet interaction
KW - Oxygen mole-fraction
UR - http://www.scopus.com/inward/record.url?scp=58149231336&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=58149231336&partnerID=8YFLogxK
U2 - 10.1016/j.combustflame.2008.10.026
DO - 10.1016/j.combustflame.2008.10.026
M3 - Article
AN - SCOPUS:58149231336
VL - 156
SP - 14
EP - 24
JO - Combustion and Flame
JF - Combustion and Flame
SN - 0010-2180
IS - 1
ER -