Large eddy simulation of ignition and combustion of ethylene/air turbulent jet diffusion flame with reduced kinetic mechanism
文献类型：会议论文
| 作者 | Ma SG(马素刚) ; Zhong FQ(仲峰泉); Zhang XY(张新宇)
|
| 出版日期 | 2015 |
| 会议名称 | 20th AIAA International Space Planes and Hypersonic Systems and Technologies Conference, 2015 |
| 会议日期 | July 6, 2015 - July 9, 2015 |
| 会议地点 | Glasgow, United kingdom |
| 关键词 | Combustion pro cess Directed relation graph Dynamic evolution Fuel injection velocities Kinetic mechanism Reduced mechanisms Temperature profiles Temporal and spatial evolutions |
| 通讯作者 | Zhong, Fengquan (fzhong@imech.ac.cn) |
| 中文摘要 | In this paper, unsteady process of ignition and combustion of turbulent plane-jet diffusion flame of ethylene/air at varied fuel/air ratios is numerically simulated with Large Eddy Simulation (LES) and a reduced kinetic mechanism of ethylene. The kinetic mechanism consisting of 25species and 131steps is reduced from a 71species/395steps detailed mechanism via the method of error-propagation-based directed relation graph (DRGEP) and sensitivity analysis. The LES results of height of flame lift-up and averaged temperature profiles at different downstream locations are compared with the DNS result of Yoo (2011) and satisfactory agreements are found. Unsteady processes of ignition and combustion of ethylene plane-jet diffusion flame are simulated with varied fuel injection velocities. Dynamic evolutions of temperature field as well as CH2 and OH radicals are obtained, which are found to be strongly related to turbulence eddies caused by jet/air mixing layer. The present numerical study shows that LES method with reduced mechanism of hydrocarbon fuels can effectively simulate temporal and spatial evolution of ignition and combustion process. © 2015, AIAA American Institute of Aeronautics and Astronautics. All rights reserved. |
| 收录类别 | EI |
| 会议网址 | https://arc.aiaa.org/doi/pdfplus/10.2514/6.2015-3603 |
| 会议录 | 20th AIAA International Space Planes and Hypersonic Systems and Technologies Conference, 2015
 |
| 语种 | 英语 |
| ISBN号 | 9781624103209 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/60165]  |
| 专题 | 力学研究所_高温气体动力学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Ma SG,Zhong FQ,Zhang XY. Large eddy simulation of ignition and combustion of ethylene/air turbulent jet diffusion flame with reduced kinetic mechanism[C]. 见:20th AIAA International Space Planes and Hypersonic Systems and Technologies Conference, 2015. Glasgow, United kingdom. July 6, 2015 - July 9, 2015.https://arc.aiaa.org/doi/pdfplus/10.2514/6.2015-3603. |
入库方式： OAI收割
来源：力学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。