2015 Fiscal Year Final Research Report
A study of a coarse particle dispersion mechanism in a swirl flame
| Project/Area Number |
25630055
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Fluid engineering
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| Research Institution | Sophia University |
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Principal Investigator |
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Keywords | 混相流 / 燃焼 |
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| 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.
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| Free Research Field |
流体工学
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