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http://dx.doi.org/10.3795/KSME-B.2005.29.3.368

A Transitional Behavior of a Premixed Flame and a Triple Flame in a Lifted Flame(I)  

Jang Jun Young (계명대학교 산업기술연구소)
Park Jeong (순천대학교 기계자동차공학부)
Kim Tae Kwon (계명대학교 기계자동차공학부)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.29, no.3, 2005 , pp. 368-375 More about this Journal
Abstract
We have presented characteristics of a transitional behavior from a premixed flame to a triple flame in a lifted flame according to the change of equivalence ratio. The experimental apparatus consisted of a slot burner and a contraction nozzle for a lifted flame. As concentration difference of the both side of slot burner increases, the shape of flame changed from a premixed flame to a triple flame, and the liftoff height decreased to the minimum value and then increased again. Around this minimum point, it is confirmed a transition regime from premixed flame to triple flame. Consequently, the experimental results of the liftoff height, flame curvature, and luminescence intensity showed that the stabilized laminar lifted flame regime is categorized by regimes of premixed flame, triple flame and critical flame.
Keywords
Lifted Flame; Premixed Flame; Triple Flame; Partially Premixed Flame; Liftoff Height; Slot Burner; Contraction Nozzle;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Schefer, R. W. and Goix, P. J., 1998, 'Mechanism of Flame Stabilization in Turbulent, Lifted-Jet Flames,' Combustion and Flame, Vol. 112, pp. 559~574   DOI   ScienceOn
2 Miake-lye, R. C. and Hammer, J. A., 1988, 'Lifted Turbulent Jet Flames: A Stability Criterion Based On The Jet Large-Scale Structure,' Twenty-Second Symposium (International) on Combustion, The Combustion Institute, pp. 817~824
3 Mansour, M. S., 2003, 'Stability Characteristics of Lifted Turbulent Partially Premixed Jet Flames,' Combustion and Flame, Vol. 133, pp. 263~274   DOI   ScienceOn
4 Everest, D. A., Feikema, D. A. and Driscoll, J. F., 1996, 'Image of Strained Flammable Layer Used to Study the Liftoff of Turbulent Jet Flames,' Twenty-Sixth Symposium (International) on Combustion, The Combustion Institute, pp. 129-136
5 Muller, C. M., Breitbach, H. and Peter, N., 1994, 'Partially Premixed Turbulent Flame Propagation in Jet Flames,' Twenty-Fifth Symposium (International) on Combustion, The Combustion Institute, pp. 1099~1106
6 Morel, T., 1975, 'Comprehensive Design of Axisymmetric Wind Tunnel Contractions,' ASME J. of Fluids Eng., pp. 225~233
7 Ko, Y. S. and Chung, S. H., 1999, 'Propagation of Unsteady Tribrachial Flames in Laminar Non-Premixed Jets,' Combustion and Flame, Vol. 118, pp. 151~163   DOI   ScienceOn
8 Seo, J. I., Kim, N. I., Oh, K. C. and Shin, H. D., 2003, 'An Experimental Study on the Effects of Concentration Gradient and Mean Velocity on the Liftoff Characteristics of the Triple Flame,' Transactions of the Korean Society of Mechanical Engineers (B), Vol. 27, No. 8, pp. 1061~1070   과학기술학회마을   DOI   ScienceOn
9 Chung, S. H. and Lee, B. J., 1991, 'On the Characteristics of Laminar Lifted Flames in a Nonpremixed Jets,' Combustion and Flame, Vol. 86, pp. 62~72   DOI   ScienceOn
10 Lee, B. J. and Chung, S. H., 1997, 'Stabilization of Lifted Tribrachial Flames in a Laminar Nonpremixed Jet,' Combustion and Flame, Vol. 109, pp. 163~172   DOI   ScienceOn
11 Kioni, P. N., Rogg, B., Bray, K. N. C. and Linan, A., 1993, 'Flame Spread in Laminar Mixing Layers: The Triple Flame,' Combustion and Flame, Vol. 95, pp. 276~290   DOI   ScienceOn
12 Azzoni, R., Ratti, S., Aggarwal, S. K. and Puri, I. K., 1999, 'The Structure of Triple Flame Stabilized on a Slot Burner,' Combustion and Flame, Vol. 119, pp. 23~40   DOI   ScienceOn
13 Kioni, P. N., Bray, K. N. C., Greenhalgh, D. A. and Rogg, B., 1999, 'Experimental and Numerical Studies of a Triple Flame,' Combustion and Flame, Vol. 116, pp. 192~206   DOI   ScienceOn