BLUFF-BODY FLAMES IN HOT AND DILUTED ENVIRONMENTS

IMECH-IR > 非线性力学国家重点实验室

	BLUFF-BODY FLAMES IN HOT AND DILUTED ENVIRONMENTS
	Liu CY.; Zhang J(张健); Yang T.; Ma YH.
会议录名称	PROCEEDINGS OF THE ASME POWER CONFERENCE, 2018, VOL 1
	2018
页码	UNSP V001T01A002
会议名称	ASME Power Conference 2018 (POWER2018)
会议日期	JUN 24-28, 2018
会议地点	Lake Buena Vista, FL
摘要	Large eddy simulation/Flamelet progress variable approach is employed in current research to investigate how flame behaviour is influenced by bluff-body and coflow composition. We used Sydney bluff-body burner as the target burner. Computation grid in cylinder coordinates is approximately 2.7 million in total number, extended to the downstream location 80 times of jet diameter. Three coflow compositions with different oxygen ratio at the same inlet velocity are considered. Comparing to jet flames with hot and diluted coflow, instantaneous and statistical results showed that an introduction of bluff body preheats the fuel and shortens the flame length. At lower oxygen ratio condition, a weaker reaction zone emerged, marked by lower temperature and OH concentration; the flame appeared lifted gradually, leading to a potential MILD combustion. Besides, bluff-body effect behaves differently in these flames: at lower oxygen ratio condition, a large-scale distribution of CH2O appeared as a marker of partial premixing and preignition reaction in recirculation area; on the contrary, in higher oxygen ratio case, the recirculation area brings out more reactive fuel at lower speed and higher temperature, hence ignitable in the vicinity of bluff-body.
WOS记录号	WOS:000456357300002
资助信息	National Natural Science Foundation of China [51376190, 11572330]
ISBN号	978-0-7918-5139-5
收录类别	CPCI-S ; EI
语种	英语
引用统计	被引频次：4[WOS] [WOS记录] [WOS相关记录]
文献类型	会议论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/78568
专题	非线性力学国家重点实验室
作者单位	1.{Liu, Chengyu、Zhang, Jian、Yang, Tao} Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China 2.{Ma, Yanhong} Beihang Univ, Sch Energy & Power Engn, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Liu CY.,Zhang J,Yang T.,et al. BLUFF-BODY FLAMES IN HOT AND DILUTED ENVIRONMENTS[C]PROCEEDINGS OF THE ASME POWER CONFERENCE, 2018, VOL 1,2018:UNSP V001T01A002.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
IrCp2018035.pdf（1037KB）	会议论文		开放获取	CC BY-NC-SA	浏览下载