Prediction of the blowout of jet diffusion flames in a coflowing stream of air
Conference
·
OSTI ID:163209
- Univ. of Calgary, Alberta (Canada). Dept. of Mechanical Engineering
The blowout limits of a lifted diffusion flame in a coflowing stream of air are estimated using a simple model for extinction, for a range of fuels, jet diameters and co-flowing stream velocities. The proposed model uses a parameter which relates to the ratio of a time associated with the mixing processes in a turbulent jet to a characteristic chemical time. The Kolmogorov microscale of time is used as time scale in this model. It is shown that turbulent diffusion flames are quenched by excessive turbulence for a critical value of this parameter. The predicted blowout velocity of diffusion flames obtained using this model is in good agreement with the available experimental data.
- OSTI ID:
- 163209
- Report Number(s):
- CONF-950116--; ISBN 0-7918-1289-8
- Country of Publication:
- United States
- Language:
- English
Similar Records
Blowout limit of a jet diffusion flame in a coflowing stream of lean gaseous fuel-air mixtures
Prediction and validation of blowout limits of co-flowing jet diffusion flames -- effect of dilution
Lifted methane-air jet flames in a vitiated coflow
Journal Article
·
Sat Sep 01 00:00:00 EDT 1984
· Combust. Flame; (United States)
·
OSTI ID:6063390
Prediction and validation of blowout limits of co-flowing jet diffusion flames -- effect of dilution
Book
·
Tue Oct 01 00:00:00 EDT 1996
·
OSTI ID:376310
Lifted methane-air jet flames in a vitiated coflow
Journal Article
·
Wed Nov 30 23:00:00 EST 2005
· Combustion and Flame
·
OSTI ID:20681466