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Investigation on local flame structure of partially prevaporized droplet by using microgravity experiment and numerical simulation

Research Project

Project/Area Number 19760146
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Thermal engineering
Research InstitutionJapan Aerospace Exploration Agency

Principal Investigator

KIKUCHI Masao  Japan Aerospace Exploration Agency, 宇宙科学研究本部, 研究員 (80371144)

Project Period (FY) 2007 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥3,590,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥390,000)
Fiscal Year 2008: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2007: ¥1,900,000 (Direct Cost: ¥1,900,000)
Keywords燃焼 / 微小重力 / 数値計算 / 液滴 / 噴霧燃焼 / 火炎 / 部分予蒸発燃焼 / 数値記算
Research Abstract

部分予蒸発液滴の燃焼過程において発現するTriple Flame状の火炎構造の基礎特性を明らかにするため、3秒級落下塔を利用した微小重力実験と非定常数値解析による研究を行った。数値解析の結果、予蒸発の進行に伴いTriple Flame状の火炎構造が顕著になること、弓形の予混合火炎部と後方の拡散火炎部が交差する点の液滴からの距離(Stand-offdistance)が長くなることが分かった。また、落下塔実験用の実験装置を設計・製作し、微小重力実験を行った。実験結果によれば、予蒸発に伴うTriple Flame状火炎構造の変化について、数値解析と定性的に一致する結果を得た。

Report

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

    (2 results)

All 2008

All Presentation (2 results)

  • [Presentation] Experimental and Numerical Study on Flame Spread of Partially Prevaporized n-decane Droplet Array2008

    • Author(s)
      M. Kikuchi, N. Sugano, S. Yoda, M. Mikami
    • Organizer
      32nd International Symposium on Combustion
    • Place of Presentation
      Montreal, Canada
    • Year and Date
      2008-08-08
    • Related Report
      2008 Final Research Report
  • [Presentation] EXPERIMENTAL AND NUMERICAL STUDY ON FLAME SPREAD OF PARTIALLY PREVAPORIZED N-DECANE DROPLET ARRAY2008

    • Author(s)
      菊池政雄
    • Organizer
      32^n^d International Symposium on Combustion
    • Place of Presentation
      モントリオール,カナダ
    • Year and Date
      2008-08-08
    • Related Report
      2008 Annual Research Report

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Published: 2007-04-01   Modified: 2016-04-21  

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