| Project/Area Number |
25630061
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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 |
Thermal engineering
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| Research Institution | Tohoku University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
MARUTA Kaoru 東北大学, 流体科学研究所, 教授 (50260451)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2015: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2014: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Keywords | 燃焼 / 着火 / 火炎 / 簡略化 / 素反応 / 詳細反応モデル / 簡易反応モデル / 燃焼速度 / 簡略化反応 / 冷炎 |
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| Outline of Final Research Achievements |
To reduce high computational costs for combustion numerical simulations with detailed reaction models, a new approach “building-up” was taken for constructing a simple reaction model in this study. Several steps of reactions were selected based on combustion phenomenology and model parameters were determined by a semi-empirical method to examine multiple combustion characteristics. The developed simple reaction model was employed in combustion numerical simulations, and satisfactory agreement with computational results obtained by a detailed reaction model and significant reduction of computational time (50 times faster) was confirmed. For further acceleration, the relaxation of stiffness due to strong non-linearity of Arrhenius expressions was tested by Fourier series, which was not completed.
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