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A study of a coarse particle dispersion mechanism in a swirl flame

Research Project

Project/Area Number 25630055
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Fluid engineering
Research InstitutionSophia University

Principal Investigator

Watanabe Mariko  上智大学, 理工学部, 准教授 (80452473)

Project Period (FY) 2013-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2013: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords混相流 / 燃焼 / 粒子
Outline of Final Research Achievements

Studies of laboratory-scale swirl flames and motion of a heated solid fuel particle were performed both experimentally and via numerical simulation to clarify a dispersion mechanism of particles in a swirl flame. The swirl velocity of the gas increased as the measuring point approached the flame surface but decreased as the point approached the center of the flame. When the air was supplied in the swirled direction, the magnitude of the air’s velocity affected both the length of the swirl flame and the gas concentration distribution. A change in the trajectory of the particle by a jet of pyrolysis gas was experimentally observed. It was numerically clarified that a local gas jet from the particle surface and a change in particle temperature affected the drag and lift forces acting on the particle.

Report

(4 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Research-status Report
  • 2013 Research-status Report
  • Research Products

    (2 results)

All 2015

All Presentation (2 results)

  • [Presentation] 表面噴き出しや発熱を伴う粒子の抗力・揚力に関する研究2015

    • Author(s)
      矢作丞史、安嶋大稀、渡邉摩理子
    • Organizer
      日本機械学会2015年度年次大会
    • Place of Presentation
      北海道大学工学部
    • Year and Date
      2015-09-14 – 2015-09-16
    • Related Report
      2014 Research-status Report
  • [Presentation] 表面噴き出しや発熱を伴う粒子の抗力・揚力に関する数値解析的研究2015

    • Author(s)
      矢作丞史, 安嶋大稀, 渡邉摩理子
    • Organizer
      日本機械学会2015年度年次大会
    • Place of Presentation
      北海道大学(北海道札幌市)
    • Year and Date
      2015-09-14
    • Related Report
      2015 Annual Research Report

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Published: 2014-07-25   Modified: 2019-07-29  

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