| Project/Area Number |
04650052
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| Research Category |
Grant-in-Aid for General Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Research Field |
Aerospace engineering
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| Research Institution | The Nagoya University |
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Principal Investigator |
HAYASHI Koichi The Nagoya University Faculty of Engineering Associate Professor, 工学部, 助教授 (60156437)
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| Co-Investigator(Kenkyū-buntansha) |
KOMURASAKI Kimiya The Nagoya University Faculty of Engineering Assistant Professor, 工学部, 助手 (90242825)
藤原 俊隆 名古屋大学, 工学部, 教授 (90023225)
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| Project Period (FY) |
1992 – 1994
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| Project Status |
Completed (Fiscal Year 1994)
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| Budget Amount *help |
¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 1994: ¥300,000 (Direct Cost: ¥300,000)
Fiscal Year 1993: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1992: ¥900,000 (Direct Cost: ¥900,000)
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| Keywords | Pulse-jet combustion / numerical simulation / turbulant combustion / LIPF (Laser Induced Pre-dissociation Fluorescence) / パルスジェット / 乱流火炎 / LIF / モデリング / 予混合火炎 / 希薄燃焼 / 可視化 |
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| Research Abstract |
In this year, we initially aimed at finishing the numerical simulation of a pulse jet flow, and at analyzing a pulse-plasma-jet assisted ignition phenomena by using a LIPF (Laser Induced Pre-dissociation Fluorescence) method. As a result, we have got the Shurilen pictures and a two-dimensional distribution of pre-dissociating OH molecules in the instant of the ignition assisted by a pulse-plasma jet in a 10*10*10cm^3 combustion container, in which methane and air are premixed.
These pictures explain the pulse-jet ignition processes as follows ; The flame originated inside the pulse-jet ignitor travels through an orifice toward a main combustor and is distinguished, and instead, the OH radicals distributed in the main chamber induce ignition like a fire work.
Although these ignition processeshave been theoretically predicted by other scientists, we have succeeded to catch the phenomena experimentally for the first time in the world.
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