Study on Flame Dynamics of Premixed Flames with Controlled Curvature by Laser Irradiation Method

2012 Fiscal Year Final Research Report

• Project/Area Number: 21360090
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Thermal engineering
• Research Institution: Hokkaido University
• Principal Investigator: FUJITA Osamu 北海道大学, 大学院・工学研究院, 教授 (10183930)
• Co-Investigator(Kenkyū-buntansha): NAKAMURA Yuji 北海道大学, 大学院・工学研究院, 准教授 (50303657) ; ITO Hiroyuki 北海道大学, 大学院・工学研究院, 助教 (30372270)
• Project Period (FY): 2009 – 2012
• Keywords: 燃焼 / 予混合火炎 / 火炎曲率 / 不安定現象 / 音響振動 / レーザ / ルイス数

Research Abstract

Evolution of flame instability of premixed flame with a given initial curvature by external laser irradiation method was investigated. At first the method was applied to open flat flame burner and the effect of Lewis number (Le) on the growth rate of curved flame was experimentally revealed. The growth rate was apparently larger with lower Le. In experiments with propagation tube, the interaction between acoustic field and curved flame was investigated. As a result of the investigation, non-dimensional number, Pulsating Froude Number, Gp, was newly defined in the present work and it was concluded that the criterion of self-turbulization in acoustic field could be given by the non-dimensional number.

Research Products

• [Journal Article] Transition of Flat Flames to Turbulent Motion Induced byExternal Laser Irradiation (2011)
  • Author(s): Park,J.S., Fujita,O., Nakamura,Y., Ito,H.
  • Journal Title: Proc.Combustion Institute Volume: Vol.33,Issue 1 Pages: 1105-1112
  • Peer Reviewed
• [Journal Article] Phenomena in oscillating downward propagating flames induced by external laser irradiation method (2010)
  • Author(s): ark,J.S., Fujita,O., Honko,T., Yamada,Y., Nakamura, Y., Ito,H.
  • Journal Title: Experimental Thermal and Fluid Science Volume: 34 Pages: 1290-1294
  • Peer Reviewed
• [Presentation] Interaction between propagation speed and flame structure in downward cellular propagating flame in a combustion tube with CO2 laser irradiation (2013)
  • Author(s): Kira,A., Taniyama,Y., Ito,H., Fujita,O.
  • Organizer: 24th Int. Conference on Dynamics of Explosions and Reactive Systems
  • Place of Presentation: National Central Univ. (Taipei, Taiwan)
  • Year and Date: 2013-07-30
• [Presentation] 外部レーザ加熱を伴う管内下方伝播火炎の乱流挙動への遷移条件 (2013)
  • Author(s): 谷山由和, 藤田修
  • Organizer: 第50回伝熱シンポ
  • Place of Presentation: ウェスチンホテル仙台(仙台)
  • Year and Date: 2013-05-30
• [Presentation] Competition between buoyancy effects and propagation speed on flame structure in downward cellular propagatingflame in a combustion tube with time controlled CO2 laser irradiation (2013)
  • Author(s): Kira,A., Taniyama,Y., Ito,H., Fujita,O.
  • Organizer: 9th Asia-Pacific Conference on Combustion
  • Place of Presentation: Gyeongju Hilton Hotel (Gyeongju, Korea)
  • Year and Date: 2013-05-20
• [Presentation] Transient Deformation of Downwards Propagating Cellular Structure Flame in a Combustion Tube with ExternalLaser Irradiation (2012)
  • Author(s): Kira,A,谷山由和,伊東弘行,藤田修
  • Organizer: 第50回燃焼シンポ
  • Place of Presentation: 愛知県産業労働センター(名古屋)
  • Year and Date: 2012-12-05
• [Presentation] 外部レーザ加熱を伴う管内下方伝播火炎と音響振動の相互作用 (2012)
  • Author(s): 谷山由和、伊東弘行、藤田修
  • Organizer: 第50回燃焼シンポ
  • Place of Presentation: 愛知県産業労働センター(名古屋)
  • Year and Date: 2012-12-05
• [Presentation] Study of Cellular Structure of Downward Propagating Premixed Flame in a Combustion Tube (2012)
  • Author(s): Kira,A, Taniyama,Y., Ito, H., and Fujita, O.
  • Organizer: Work-In Progress Poster Colloquium at 34th Int. Symp. on Comb.
  • Place of Presentation: Warsaw University of Technology (Warsaw, Poland)
  • Year and Date: 2012-08-01
• [Presentation] Initiation of the corrugated sturucture in downward propagating flame ina combustion tube with external laser (2012)
  • Author(s): Taniyama, Y., J.S.Park, and Fujita, O.
  • Organizer: Work-In Progress Poster Colloquium at 34th International Symposium on Combustion
  • Place of Presentation: Warsaw Univ. of Technology (Warsaw, Poland)
  • Year and Date: 2012-08-01
• [Presentation] 外部レーザ加熱を伴う管内下方伝播火炎における波状火炎の形成 (2012)
  • Author(s): 谷山由和,朴俊成,藤田修
  • Organizer: 第49回伝熱シンポ
  • Place of Presentation: 富山国際会議場(富山)
  • Year and Date: 2012-05-31
• [Presentation] レーザ照射により曲率を与えた予混合火炎の非定常変形挙動に関する研究 (2011)
  • Author(s): 高木一成,June Sung PARK,伊東弘行,中村祐二,藤田修
  • Organizer: 第49回燃焼シンポ
  • Place of Presentation: 慶應義塾大学(横浜)
  • Year and Date: 2011-12-06
• [Presentation] Transition from Laminar to Turbulent Flame Induced by Laser Irradiation Method in a Propagation Tube (2011)
  • Author(s): Osamu Fujita, June Sung Park, Yoshikazu Taniyama
  • Organizer: 8th International Conference on Flow Dynamics
  • Place of Presentation: Tohoku University (Sendai)
  • Year and Date: 2011-11-09
• [Presentation] Determination of the transition threshod from laminar flat flames to turbulent flames by a CO_2 laser irradiation method, Proc (2011)
  • Author(s): Park, J. S., Fujita, O, Taniyama, Y
  • Organizer: 23rd International Colloquium on Dynamics of Explosion and Reactive Systems (23rd ICDERS)
  • Place of Presentation: University of California at Irvine (Irvine, USA)
  • Year and Date: 2011-07-26
• [Presentation] Active Induction of the Transition from Hydrodynamicto Primary Acoustic Instablity by CO2 Laser Irradiation, Proc (2010)
  • Author(s): Park, J. S., Fujita, O., Ito, H., and Nakamura, Y.
  • Organizer: 8th Asia-Pacific Conference on Combustion
  • Place of Presentation: Taramati Baradari Cultural Complex (Hyderbad, India)
  • Year and Date: 2010-12-13
• [Presentation] Dynamic Behavior of Premixed Flame distorted by Laser Irradiation (2010)
  • Author(s): Takagi, K., Park,J.S., Nakamura,Y., Ito, H., and Fujita, O
  • Organizer: Work-In Progress Poster Colloquium at 33rd Int. Symp. on Comb.
  • Place of Presentation: Tsinghua University, (Beijing, China)
  • Year and Date: 2010-08-03
• [Presentation] Nakamura, Transition Phenomena of Downward Propagation Flames in a Tube induced by ExternalLaser Irradiation (2009)
  • Author(s): Park,J.S, Fujita,O., Honko, T., Yamada, Y., Ito, H., Y
  • Organizer: 第47回燃焼シンポ演論文集
  • Place of Presentation: 札幌コンベンションセンター(札幌)
  • Year and Date: 2009-12-03
• [Presentation] Dynamic Behavior of Oscillating Flame Fronts in a Combustion Tube Induced by External Laser Irrandation (2009)
  • Author(s): Park,J.S., Fujita,O., Nakamura,Y., Ito H.
  • Organizer: Proceegings of KOSCO
  • Place of Presentation: Seoul National University (Seoul, Korea)
  • Year and Date: 2009-11-30
• [Presentation] Some Features of Oscillating Downward Propagation Flames Induced by External Laser Irradiation, Proc (2009)
  • Author(s): Park, J. S., Fujita, O., Honko, T., Yamada, Y., Ito, H., and Nakamura, Y.
  • Organizer: 21st International Colloquium on Dynamics of Explosion and Reactive Systems
  • Place of Presentation: Minsk City Hall (Minsk, Belarus)
  • Year and Date: 2009-07-30
• [Remarks]
  • URL: http://york-me.eng.hokudai.ac.jp/researches/2012/FlameInstability/index-e.htm