Browse > Article

Structural Variation of Methane/Air Premixed Flame Caused by the Intervention of Ultrasonic Standing-wave  

Seo, Hang-Seok (부경대학교 대학원 에너지시스템공학과)
Lee, Sang-Shin (부경대학교 기계공학과)
Kim, Jeong-Soo (부경대학교 기계공학과)
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.15, no.6, 2011 , pp. 1-6 More about this Journal
Abstract
An experimental study has been conducted to scrutinize into the influence of ultrasonic standing wave field on the variation of methane/air premixed flame structure. Visualization technique utilizing the Schlieren method is employed for the observation of premixed flame propagation. The shape of flame front and local flame velocity are measured according to the variation of reactants pressure and chamber opening/closing condition. The flame fronts affected by the standing wave are clearly distorted but the vertical locations of frontal dents do not undergo any appreciable change. The influence of standing wave on the flame front becomes more prominent as the flame propagates downward. It is found that the propagation velocity of flame front with excitation of standing wave is greater than the case without the excitation. It is eventually revealed that the flame is deformed to lotus-shaped one by the vivid interaction of ultrasonic standing-wave with the reflected wave coming from the right side.
Keywords
Combustion Instability; Premixed Flame; Ultrasonic Standingwave; Flame Structure; Lotus Flame;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Shinoda, M., Yamada, E., Kajimoto, T., Yamashita, H., and Kitagawa, K., "Mechanism of magnetic field effect on OH density distribution in a methane-air premixed jet flame," Proc. Combust. Inst., Vol. 30, Issue 1, 2005, pp.277-284   DOI   ScienceOn
2 Won, S. H., Ryu, S. K., Kim, M. K., Cha, M. S., and Chung, S. H., "Effect of electric fields on the propagation speed of tribrachial flames in coflow jets," Combustion and Flame, Vol. 152, Issue 4, 2008, pp.496-506   DOI   ScienceOn
3 Tanabe, M., Kuwahara, T., Satoh, K., Fujimori, T., Sato, J., and Kono, M., "Droplet combustion in standing sound waves," Proc. Combust. Inst., Vol. 30, Issue 2, 2005, pp.1957-1964   DOI   ScienceOn
4 Dattarajan, S., Lutomirski, A., Lobbia, R., Smith, O. I., and Karagozian, A. R., "Acoustic excitation of droplet combustion in microgravity and normal gravity," Combustion and Flame, Vol. 144, Issues 1-2, 2006, pp.299-317   DOI   ScienceOn
5 한재섭, 김선진, 김 유, "음파가 고정액적의 증발/연소에 미치는 영향에 관한 연구," 한국추진공학회지, 제6권, 제3호, 2002, pp.53-60
6 김승곤, 김강태, 박 정, "음향 가진된 프로판비예혼합 제트 화염의 부상 거동에 대한 실험적 연구," 대한기계학회논문집 B권, 제28권, 제5호, 2004, pp.569-579
7 Guenoche, H., Nonsteady Flame Propagation, Marksteiun, G. H. Ed., Pergamon, New York, 1964, pp.115-119
8 Matalon, M. and Metzener, P., "The propagation of premixed flames in closed tubes," J. Fluid Mech., Vol. 336, 1997, pp.331-350   DOI   ScienceOn
9 Ellis, O. C. and De, C., "Flame movement in gasous explosive mixtures (Part 7)," Fuel in Science and Practice 7, 1928, pp.502-508
10 Dunn-Rankim, D. and Sawyer, R. F., "Tulip flames: change in shape of premixed flames propagating in closed tubes," Exp. Fluids, Vol. 24, No. 2, 1998, pp.130-140   DOI
11 Clanet, C. and Searby, G., "On the "tulip flame" phenomenon," Combustion and Flame, Vol. 105, Issues 1-2, 1996, pp.225-238   DOI   ScienceOn
12 Annaswamy, A. M. and Ghoniem, A. F., "Active control of combustion instability: Theory and Practice," IEEE Control Syst, Mag., Vol. 22, Issue 6, 2002, pp.37-54   DOI
13 Hayashi, A. K., Sato, H., Endo, T., Yasunami, Y., Yoshimi, S., Ogawa, S., Ikame, M., Kishi, T., Hiraoka, K., Harumi, K., and Oka, H., "Analysis of unstable phenomena in premixed flame burners and their active control," Proc. 4th Symp. Smart Control of Turbulence, 2003, pp.173-182