Research on Pulse Plasma Jet with Turbulent Flow

湍流脉冲等离子射流研究

• 批准号: 04650052
• 负责人: HAYASHI Koichi
• 金额: $ 1.28万
• 依托单位: The Nagoya University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1992
• 资助国家: 日本
• 起止时间: 1992 至 1994
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-04650052/
• 关键词: 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

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.

本年度，我们的初步目标是完成脉冲射流的数值模拟，并利用LIPF（激光诱导预解离荧光）方法分析脉冲等离子体射流辅助点火现象。在10 × 10 × 10 × 10 ~（-3）cm ~ 3的燃烧室中，对甲烷和空气进行了预混，得到了脉冲等离子体射流点火瞬间的Shurilen图像和预解离OH分子的二维分布，这些图像解释了脉冲射流点火过程：在脉冲喷射点火器内部产生的火焰通过孔口朝向主燃烧器行进并被区分，而相反，分布在主燃烧室中的OH自由基像火一样诱发点火。尽管这些点火过程已经被其他科学家从理论上预测，我们在世界上首次成功地在实验上捕捉到了这种现象。

项目成果

Hayashi,A.K.Hishida,M.: "Pulsed Jet Ignition Modeling with a Full Chemistry" Proceedings of the sixth Toyota Conterence on Turbulence and Molecular Processes in Combustion,Japan. (1992)

Hayashi,A.K.Hishida,M.：“具有完整化学的脉冲喷射点火建模”第六届丰田燃烧湍流和分子过程会议论文集，日本。

A.K.Hayashi: "Pulsed Jet Ignition Modelling with a Full chemistry Tur" Turbulence and Molecular Processes in Combustion. 199-220 (1994)

A.K.Hayashi：“使用全化学 Tur 的脉冲射流点火建模”燃烧中的湍流和分子过程。

A.K.Hayashi: "Pulsed Jet Ignition Modeling with a Full Chemistry" Turbulence and Molecular Processes in Combustion. 199-220 (1994)

A.K.Hayashi：“具有完整化学的脉冲喷射点火建模”燃烧中的湍流和分子过程。

A.K.Hayashi: "Study on Pulsed Jet Flame:LIPF Measurements and Modeling" Proc.of 15th Int.Collo.on the Dynamics of Explosions and Reactive Systems. (1995)

A.K.Hayashi：“脉冲喷射火焰研究：LIPF 测量和建模”Proc.of 15th Int.Collo.on the Dynamics of Explosions and Reactive Systems。

菱田 学,林 光一: "パルスジェットの乱流混合を用いた燃焼促進に関する数値解析" 日本機械学会第70期通常総会講演会前刷集. (1993)

Manabu Hishida、Koichi Hayashi：“使用脉冲射流湍流混合促进燃烧的数值分析”日本机械工程师学会第 70 届普通大会预印本（1993 年）。