Browse > Article
http://dx.doi.org/10.3795/KSME-B.2014.38.2.173

Propagation Behavior and Structural Variation of C3H8-Air Premixed Flame with Frequency Change in Ultrasonic Standing Wave  

Lee, Sang Shin (Dept. of Mechanical Engineering, Pukyong Nat'l Univ.)
Seo, Hang Seok (Development Team, Daejeon Plant, Hanwha Corp.)
Kim, Jeong Soo (Dept. of Mechanical Engineering, Pukyong Nat'l Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.38, no.2, 2014 , pp. 173-181 More about this Journal
Abstract
The propagation behavior and structural variation of a premixed propane/air flame with frequency change in an ultrasonic standing wave at various equivalence ratios were experimentally investigated using Schlieren photography and pressure measurement. The propagating flame was observed in high-speed Schlieren images, allowing local flame velocities of the moving front to be analyzed in detail. The study reveals that the distorted flame front and horizontal splitting in the burnt zone are due to the ultrasonic standing wave. Vertical locations of the distortion and horizontal stripes are intimately dependent on the frequency of the ultrasonic standing wave. In addition, the propagation velocity of the flame front bounded by the standing wave is greater than that of the flame front without acoustic excitation. As expected, the influence of the ultrasonic standing wave on premixed-flame propagation becomes more prominent as the frequency increases.
Keywords
Premixed Flame; Propane/Air; Ultrasonic Standing-wave; Flame Propagation; Flame Structure; Schlieren Method;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
연도 인용수 순위
1 Jomaas, G., Law, C. K. and Bechtold, J. K., 2007, "On Transition to Cellularity in Expanding Spherical Flames," J. Fluid Mech., Vol. 583, pp. 1-26.   DOI   ScienceOn
2 Williams, F. A., CA: 1985, Combustion Theory, 2nd edition, Addison-Wesley, Redwood.
3 Bechtold, J. K. and Matalon, M., 1987, " Hydrodynamic and Diffusion Effects on the Stability of Spherically Expanding Flames, "Combustion and Flame, Vol. 67, Issue 1, pp. 77-90.   DOI   ScienceOn
4 Huzayyin, A. S., Moneib, H. A., Shehatta, M. S. and Attia, A. M. A., 2008, "Laminar Burning Velocity and Explosion Index of LPG-Air and Propane-Air Mixtures", Fuel, Vol. 87, Issue 1, pp. 39-57.   DOI   ScienceOn
5 Vu, T. M., Song, W. S., Park, J., Kwon, O. B., Bae, D. S., Yun, J. H. and Keel, S. I., 2011, "Effects of Hydrocarbon Addition on Cellular Instabilities in Expanding Syngas-Air Spherical Premixed Flames," Trans. Korean Soc. Mech. Eng. B, Vol. 35, No. 2, pp.179-188.   과학기술학회마을   DOI   ScienceOn
6 Ellis, O. C. and De, C., 1928, "Flame Movement in Gaseous Explosive Mixtures (Part 7)," Fuel in Science and Practice 7, pp. 502-508.
7 Guenoche, H., 1964, Nonsteady Flame Propagation, Markstein, G. H. Ed., Pergamon, New York, pp. 107-176.
8 Dunn-Rankin, D. and Sawyer, R. F., 1998, "Tulip Flames: Change in Shape of Premixed Flames Propagating in Closed Tubes," Exp. Fluids, Vol. 24, Issue 2, pp. 130-140.   DOI
9 Clanet, C. and Searby, G., 1996, "On the "Tulip Flame" Phenomenon," Combustion and Flame, Vol. 105, Issues 1-2, pp. 225-238.   DOI   ScienceOn
10 Bychkov, V. V. and Liberman, M. A., 2000, "Dynamics and Stability of Premixed Flames," Physics Reports, Vol. 325, Issues 4-5, pp. 115-238.   DOI   ScienceOn
11 Park, J. S., Fujita, O., Honko, T., Yamada, Y., Ito, H. and Nakamura, Y., 2010, "Phenomena in Oscillating Downward Propagating Flames Induced by External Laser Irradiation," Experimental Thermal and Fluid Science, Vol. 34, Issue 8, pp. 1290-1294.   DOI   ScienceOn
12 Gonzalez, M., 1996, "Acoustic Instability of a Premixed Flame Propagating in a Tube," Combustion and Flame, Vol. 107, No. 3, pp. 245-259.   DOI   ScienceOn
13 Seo, H. S., Lee, S. S. and Kim, J. S., 2011, "Structural Variation of Methane/Air Premixed Flame Caused by the Intervention of Ultrasonic Standing-wave," J. the Korean Society of Propulsion Engineers, Vol. 15, No. 6, pp. 1-6.   과학기술학회마을
14 Kim, J. S., Seo, H. S. and Lee, S. S., 2012, "An Evolution of the Premixed Flame Precipitated by Ultrasonic Standing Wave," AIAA 2012-4032.
15 Seo, H. S., Lee, S. S. and Kim, J. S., 2012, "Agitation Effect of an Ultrasonic Standing Wave on the Dynamic Behavior of Methane/Air Premixed Flame," J. the Korean Society of Propulsion Engineers, Vol. 16, No. 3, pp. 16-23.
16 Lee, S. S., Seo, H. S. and Kim, J. S., 2012, "Interacting Effects of an Ultrasonic Standing-wave on the Propagation Behavior and Structural Stabilization of Propane/Air Premixed Flame," J. the Korean Society of Propulsion Engineers, Vol. 16, No. 6, pp. 1-8.
17 Seo, H. S., Lee, S. S. and Kim, J. S., 2013, "Effects of the Equivalence Ratio on Propagation Characteristics of CH4-Air Premixed Flame Intervened by an Ultrasonic Standing Wave," J. the Korean Society of Propulsion Engineers, Vol. 17, No. 2, pp. 16-23.