Forced reattachment evolution process of a lifted jet diffusion flame induced by repetitive D.C. Pulsed discharges

Tzu Wei Chang, Yei Chin Chao, Tsarng Sheng Cheng

研究成果: Paper

摘要

Electrically enhanced combustion by applying electric fields or plasmas has been demonstrated as a promising approach to the problem of flame instability occurred in lean combustion process. In this study, the lifted-flame forced reattachment process in a turbulent non-premixed propane jet induced by a repetitive D.C. pulsed discharges with a proposed electrode configuration have been experimentally investigated. A conditional particle image velocimetry (cond-PIV) measurement is used to analyze the detailed flame-flow interaction of complete reattachment process. The results show that the effect of pulsed discharge on flame stabilization is significant with increasing pulse repetition frequency (PRF). According to the time history of flame base height and variation of absolute flame speed with the axial location, it suggests that the corona discharge plays a key role in flame dynamic propagation process, leading to flame reattachment, as a result of the flame-edge propagation speed is augmented over 3 SL.

原文English
出版狀態Published - 2019 一月 1
事件12th Asia-Pacific Conference on Combustion, ASPACC 2019 - Fukuoka, Japan
持續時間: 2019 七月 12019 七月 5

Conference

Conference12th Asia-Pacific Conference on Combustion, ASPACC 2019
國家Japan
城市Fukuoka
期間19-07-0119-07-05

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Energy Engineering and Power Technology
  • Fuel Technology
  • Condensed Matter Physics

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  • 引用此

    Chang, T. W., Chao, Y. C., & Cheng, T. S. (2019). Forced reattachment evolution process of a lifted jet diffusion flame induced by repetitive D.C. Pulsed discharges. 論文發表於 12th Asia-Pacific Conference on Combustion, ASPACC 2019, Fukuoka, Japan.