Effect of transport processes on ignition of stretched diffusion flames using laser spark

Wei Yan; Segura Fidelio S.; Deng Weiwei; Chen Ruey-Hung

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Effect of transport processes on ignition of stretched diffusion flames using laser spark

机译：传输过程对激光火花拉伸扩散火焰着火的影响

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摘要

Laser spark ignition of methane diffusion flames, in the stagnation region in counter-flow configuration, is studied with a range of transport properties achieved by using different levels of inert dilution with helium and argon as diluents in the fuel stream. The effects of transport properties on ignition strain rate and ignition delay time are investigated and possible effects of effective Lewis number (Le(e)) are also discussed and compared with those for flame extinction. The following results are obtained:

机译：研究了在逆流构造中处于停滞区域的甲烷扩散火焰的激光火花点火，并通过使用不同水平的惰性稀释气体（以氦和氩作为稀释剂）在燃料流中实现了一系列的传输特性。研究了传输特性对点火应变率和点火延迟时间的影响，并讨论了有效路易斯数（Le（e））的可能影响，并将其与熄火的影响进行了比较。得到以下结果：

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来源
《International Journal of Heat and Mass Transfer》 |2018年第8期|988-993|共6页
作者
Wei Yan; Segura Fidelio S.; Deng Weiwei; Chen Ruey-Hung;
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作者单位

Southern Univ Sci & Technol, Dept Mech & Energy Engn, Shenzhen 518055, Peoples R China;

Univ Cent Florida, Dept Mech & Aerosp Engn, Orlando, FL 32816 USA;

Southern Univ Sci & Technol, Dept Mech & Aerosp Engn, Shenzhen 518055, Peoples R China;

New Mexico State Univ, Dept Mech & Aerosp Engn, Las Cruces, NM 88003 USA;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类
关键词
Laser ignition; Laser spark; Diffusion flame; Transport properties; Damkohler number;

机译：激光点火;激光火花;扩散火焰;传输特性;Damkohler数;

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机译：使用高速成像和扩展的火花点火模型SparkCIMM了解喷雾引导汽油发动机的点火过程。 A部分：火花通道过程和湍流火焰前沿传播
2. Use of laser-induced spark for studying ignition stability and unburned hydrogen escaping from laminar diluted hydrogen diffusion jet flames [J] . Tran X. Phuoc, Ruey-Hung Chen Optics and Lasers in Engineering . 2007,第8期

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机译：使用高速成像和扩展的火花点火模型SparkCIMM了解喷雾引导汽油发动机的点火过程B部分：早期火焰前沿传播中分子燃料特性的重要性
4. Impact of Fuel Properties and Flame Stretch on the Turbulent Flame Speed in Spark-Ignition Engines [C] . Pierre Brequigny, Christine Mounaim-Rousselle, Fabien Halter, International Conference on Engines and Vehicles . 2013

机译：燃料特性和火焰伸展对火花点火发动机湍流速度的影响
5. Development of a Turbulent Burning Velocity Model Based on Flame Stretch Concept for Spark Ignition Engines [D] . ?Afkhami, Behdad 2019

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6. Control of Early Flame Kernel Growth by Multi-Wavelength Laser Pulses for Enhanced Ignition [O] . Ciprian Dumitrache, Rachel VanOsdol, Christopher M. Limbach, -1

机译：多波长激光脉冲控制早期火焰核生长以增强点火
7. FUNDAMENTAL STUDIES OF IGNITION PROCESSES IN LARGE NATURAL GAS ENGINES USING LASER SPARK IGNITION [O] . Yalin, Azer, Defoort, Morgan, Willson, Bryan 2005

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8. Laser Spark Ignition and Extinction of a Methane-Air Diffusion Flame [R] . Schmieder, R. W. 1980

机译：激光火花点火和甲烷 - 空气扩散火焰的消光

Effect of transport processes on ignition of stretched diffusion flames using laser spark

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