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Research on the relationship between flame curvature and its instability by using laser irradiation method

Research Project

Project/Area Number 18360095
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Thermal engineering
Research InstitutionHokkaido University

Principal Investigator

FUJITA Osamu  Hokkaido University, 大学院・工学研究科, 教授 (10183930)

Co-Investigator(Kenkyū-buntansha) NAKAMURA Yuji  北海道大学, 大学院・工学研究科, 准教授 (50303657)
ITO Hiroyuki  北海道大学, 大学院・工学研究科, 助教 (30372270)
OSHIMA Nobuyuki  北海道大学, 大学院・工学研究科, 教授 (10217135)
Project Period (FY) 2006 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥16,130,000 (Direct Cost: ¥14,000,000、Indirect Cost: ¥2,130,000)
Fiscal Year 2008: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2007: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2006: ¥6,900,000 (Direct Cost: ¥6,900,000)
Keywords燃焼 / 予混合火炎 / 火炎振動伝播 / 不安定現象 / レーザー / 赤外吸収 / 火炎曲率 / 乱流燃焼 / 予混合火災 / 火災振動伝播 / レーザ / 予混合ガス / ルイス数
Research Abstract

エチレン空気予混合火炎にCO_2レーザーを照射すると、未燃混合気にレーザーが吸収され、局所的に任意の変形を与えることができる。この手法を用いて、予混合火炎面の火炎曲率と伝播火炎面に現れる不安定現象の相互関係を調べた。火炎に径の小さなレーザーを照射し一定値(5~6cm-1)を超える曲率を与えると、火炎先端の伝播速度が時間的に変動する不安定現象が現れることを見出した。また、この要因が先端で生じる熱物質拡散不安定性と伸張消炎と類似の物理的意味をもつ曲率消炎により引き起こされるとする物理モデルを提示した。

Report

(4 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • 2007 Annual Research Report
  • 2006 Annual Research Report
  • Research Products

    (25 results)

All 2009 2008 2007 Other

All Journal Article (5 results) (of which Peer Reviewed: 5 results) Presentation (17 results) Remarks (3 results)

  • [Journal Article] Research on the Relation of Flame Front Curvature and Oscillatory Flame Propagation by External Laser Irradiation Method2009

    • Author(s)
      Tsuchimoto, M., Fujita, O., Honko, T., Nakamura, Y., and Ito, H.
    • Journal Title

      Proc. Combustion Institute Vol.32

      Pages: 1003-1009

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Research on the Relation of Flame Front Curvature and Oscillatory Flame Propagation by External Laser Irradiation Method2009

    • Author(s)
      Tsuchimoto, M., Fujita, O., Honko, T., Nakamura,Y., and Ito, H.
    • Journal Title

      Proc. Combustion Institute 32

      Pages: 1003-1009

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effect of gravity and beam diameter on flame oscillation phenomena induced by external laser irradiation2008

    • Author(s)
      Tsuchimoto, M., Honko, T., Nakamura, Y., Ito, H. and Fujita, O.
    • Journal Title

      Combustion Science and Technology 180-101

      Pages: 803-1811

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Effect of gravity and beam diameter on flame oscillation phenomena induced by external laser irradiation2008

    • Author(s)
      Tsuchimoto, M., Honko, T., Nakamura, Y., Ito, H., and Fujita, O.
    • Journal Title

      Combustion Science and Technology 180-10

      Pages: 1803-1811

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effect of gravity and beam diameter on flame oscillation phenomena induced by external laser irradiation2008

    • Author(s)
      Masakazu TSUCHIMOTO, Osamu FUJITA, Teruaki HONKO, Yuji NAKAMURA, and Hiroyuki ITO
    • Journal Title

      Combustion Science and Technology 未定(印刷中)

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Presentation] Some Features of Oscillating Downward Propagation Flames Induced by External Laser Irradiation2009

    • Author(s)
      Park, J.S., Fujita, O., Honko, T., Yamada, Y., Ito, H., and Nakamura, Y.
    • Organizer
      22nd International Colloquium on Dynamics of Explosion and Reactive Systems(22nd ICDERS)
    • Place of Presentation
      Luikov Heat and Mass Transfer Institute,Minsk, Belarus
    • Year and Date
      2009-07-27
    • Related Report
      2008 Final Research Report
  • [Presentation] Some Features of Oscillating Downward Propagation Flames Induced by External Laser Irradiation2009

    • Author(s)
      Park, J. S., Fujita, O., Honko, T., Yamada Y., Ito, H., and Nakamura, Y.
    • Organizer
      22nd International Colloquium on Dynamics of Explosion and Reactive Systems (22nd ICDERS)
    • Place of Presentation
      Luikov Heat and Mass Transfer Institute, Minsk, Belarus
    • Year and Date
      2009-07-27
    • Related Report
      2008 Annual Research Report
  • [Presentation] レーザー照射に誘起される火炎の不安定現象2008

    • Author(s)
      本小輝晃, 槌本真和, 中村祐二, 伊東弘行, 藤田修
    • Organizer
      第46回燃焼シンポ
    • Place of Presentation
      京都テルサ, 京都
    • Year and Date
      2008-12-03
    • Related Report
      2008 Final Research Report
  • [Presentation] レーザー照射に誘起される火炎の不安定現象2008

    • Author(s)
      本小輝晃, 槌本真和, 中村祐二, 伊東弘行, 藤田修
    • Organizer
      第46回燃焼シンポジウム
    • Place of Presentation
      京都テルサ京都
    • Year and Date
      2008-12-03
    • Related Report
      2008 Annual Research Report
  • [Presentation] Effect of Gravity on Flame Oscillation Phenomena2008

    • Author(s)
      Honko, T., Fujita, O., Tsuchimoto, M., Shiote,A., Nakamura, Y., and Ito, H.
    • Organizer
      7th JSME-KSME Thermal and Fluids Engineering Conference(TFEC7)
    • Place of Presentation
      Sapporo, Japan
    • Year and Date
      2008-10-14
    • Related Report
      2008 Final Research Report
  • [Presentation] Effect of Gravity on Flame Oscillation Phenomena2008

    • Author(s)
      Honko, T., Fujita, O., Tsuchimoto, M., Shiote, A., Nakamura, Y., and Ito, H.
    • Organizer
      7th JSME-KSME Thermal and Fluids Engineering Conference (TFEC7)
    • Place of Presentation
      かでる2・7 Sapporo
    • Year and Date
      2008-10-14
    • Related Report
      2008 Annual Research Report
  • [Presentation] Research on the Relation of Flame Front Curvature and Oscillatory Flame Propagation by External Laser Irradiation Method2008

    • Author(s)
      Tsuchimoto, M., Fujita, O., Honko ,T., Nakamura, Y., and Ito, H.
    • Organizer
      32nd Int. Symp. on Combustion
    • Place of Presentation
      McGill University, Montreal, Canada
    • Year and Date
      2008-08-04
    • Related Report
      2008 Final Research Report
  • [Presentation] Effect of Buoyancy on Flame Oscillation Phenomenon induced by External Radiation2008

    • Author(s)
      Honko, T., Fujita, O., Tsuchimoto, M., Shiote, A., Nakamura, Y., and Ito, H.
    • Organizer
      Work-InProgress Poster Colloquium at 32nd Int. Symp. on Comb.
    • Place of Presentation
      McGill University, Montreal, Canada
    • Year and Date
      2008-08-04
    • Related Report
      2008 Final Research Report
  • [Presentation] Effect of Buoyancy on Flame Oscillation Phenomenon induced by External Radiation2008

    • Author(s)
      Honko, T., Fujita, O., Tsuchimoto, M., Shiote, A., Nakamura, Y., and Ito, H.
    • Organizer
      Work-In Progress Poster Colloquium at 32nd International Symposium on Combustion
    • Place of Presentation
      McGill University Montreal, Canada
    • Year and Date
      2008-08-04
    • Related Report
      2008 Annual Research Report
  • [Presentation] レーザー径および重力が外部加熱による火炎振動伝播現象に与える影響2007

    • Author(s)
      槌本真和, 本小輝晃, 中村祐二, 伊東弘行, 藤田修
    • Organizer
      第45回燃焼シンポ
    • Place of Presentation
      仙台国際センター, 仙台
    • Year and Date
      2007-12-06
    • Related Report
      2008 Final Research Report
  • [Presentation] レーザー径および重力が外部加熱による火炎振動伝播現象に与える影響2007

    • Author(s)
      槌本 真和, 本小 輝晃, 中村 祐二, 伊東 弘行, 藤田 修
    • Organizer
      第23回宇宙利用シンポジウム
    • Place of Presentation
      仙台国際センター、仙台
    • Year and Date
      2007-12-06
    • Related Report
      2007 Annual Research Report
  • [Presentation] 微小重力環境を利用した火炎振動伝播現象の発生メカニズムに関する実験的検討2007

    • Author(s)
      槌本真和, 本小輝晃, 中村祐二, 伊東弘行, 藤田修
    • Organizer
      第51回宇宙科学技術連合講演会
    • Place of Presentation
      札幌コンベンションセンター, 札幌
    • Year and Date
      2007-10-29
    • Related Report
      2008 Final Research Report
  • [Presentation] 微小重力環境を利用した火炎振動伝播現象の発生メカニズムに関する実験的検討2007

    • Author(s)
      槌本 真和, 本小 輝晃, 中村 祐二, 伊東 弘行, 藤田 修
    • Organizer
      第51回宇宙科学技術連合講演会
    • Place of Presentation
      札幌コンベンションセンター,札幌
    • Year and Date
      2007-10-29
    • Related Report
      2007 Annual Research Report
  • [Presentation] 微小重力場における燃焼現象(招待講演)2007

    • Author(s)
      藤田修
    • Organizer
      第41回応用物理学会スクール
    • Place of Presentation
      北海道工業大学, 札幌
    • Year and Date
      2007-09-05
    • Related Report
      2008 Final Research Report
  • [Presentation] 微小重力場における燃焼現象(招待講演)2007

    • Author(s)
      藤田 修
    • Organizer
      第41回応用物理学会スクール
    • Place of Presentation
      北海道工業大学、札幌
    • Year and Date
      2007-09-05
    • Related Report
      2007 Annual Research Report
  • [Presentation] Effect of gravity and beam diameter on flame oscillation phenomena induced by external laser irradiation2007

    • Author(s)
      Tsuchimoto, M., Fujita, O., Honko,T., Nakamura, Y., and Ito, H.
    • Organizer
      21st International Colloquium on the Dynamics of Explosons and Reactive Systems(21st ICDERS)
    • Place of Presentation
      21st International Colloquium on the Dynamics of Explosons and Reactive Systems(21st ICDERS)
    • Year and Date
      2007-07-26
    • Related Report
      2008 Final Research Report
  • [Presentation] Effect of gravity and beam diameter on flame oscillation phenomena induced by external laser irradiation2007

    • Author(s)
      Masakazu TSUCHIMOTO, Osamu FUJITA, Teruaki HONKO, Yuji NAKAMURA, and Hiroyuki ITO
    • Organizer
      21st International Colloquium on the Dynamics of Explosions and Reactive Systems
    • Place of Presentation
      University of Pitiers, Poitiers, France
    • Year and Date
      2007-07-26
    • Related Report
      2007 Annual Research Report
  • [Remarks]

    • URL

      http://york-me.eng.hokudai.ac.jp/

    • Related Report
      2008 Final Research Report
  • [Remarks]

    • URL

      http://york-me.eng.hokudai.ac.jp/

    • Related Report
      2008 Annual Research Report
  • [Remarks]

    • URL

      http://york-me.eng.hokudai.ac.jp/researches/2006/FlameInstability/index.html

    • Related Report
      2007 Annual Research Report

URL: 

Published: 2006-04-01   Modified: 2016-04-21  

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