南方科技大学知识苑(SUSTech KC): A numerical support of leading point concept

题名	A numerical support of leading point concept
作者	Lee，Hsu Chew1,2 ; Dai，Peng1 ; Wan，Minping1,2 ; Lipatnikov，Andrei N.3
通讯作者	Lipatnikov，Andrei N.
发表日期	2022-06-30
DOI	10.1016/j.ijhydene.2022.05.140
发表期刊	INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 影响因子和分区
ISSN	0360-3199
EISSN	1879-3487
卷号	47 期号:55页码:23444-23461
摘要	Unsteady three-dimensional Direct Numerical Simulation (DNS) data obtained from 16 statistically planar and one-dimensional, complex-chemistry, lean (equivalence ratio is equal to 0.50 or 0.35) hydrogen-air flames propagating in forced, intense, small-scale turbulence (Karlovitz number up to 565) are reported. The data are analyzed to compare roles played by leading and trailing edges of a premixed turbulent flame brush in its propagation. The comparison is based on the following considerations: (i) positively (negatively) curved reaction zones predominate at the leading (trailing, respectively) edge of a premixed turbulent flame brush and (ii) preferential diffusion of molecular or atomic hydrogen results in increasing the local fuel consumption and heat release rates in positively or negatively, respectively, curved reaction zones. Therefore, turbulent burning velocities computed by deactivating differential diffusion effects for all species with the exception of either H or H are compared for assessing roles played by leading and trailing edges of a premixed turbulent flame brush in its propagation. By analyzing the DNS data, a significant increase in the local fuel consumption and heat release rates due to preferential diffusion of H or H is documented close to the leading or trailing, respectively, edges of the studied flame brushes. Nevertheless, turbulent burning velocities computed by activating preferential diffusion solely for H are significantly higher than turbulent burning velocities computed by activating preferential diffusion solely for H. This result indicates an important role played by the leading edge in the propagation of the explored turbulent flame brushes.
关键词	Hydrogen Leading point concept Lewis number Preferential diffusion Turbulent burning velocity Turbulent combustion
相关链接	[Scopus记录]
收录类别	SCI ; EI
语种	英语
学校署名	第一
资助项目	Guangdong Science and Technology Department[2019B21203001];Guangdong Science and Technology Department[2020B1212030001];National Natural Science Foundation of China[51976088];National Natural Science Foundation of China[91752201];National Natural Science Foundation of China[92041001];
WOS研究方向	Chemistry ; Electrochemistry ; Energy & Fuels
WOS类目	Chemistry, Physical ; Electrochemistry ; Energy & Fuels
WOS记录号	WOS:000862450200004
出版者	PERGAMON-ELSEVIER SCIENCE LTD
EI入藏号	20222412208834
EI主题词	Air ; Chemical activation ; Combustion ; Diffusion ; Reaction rates ; Velocity
EI分类号	Chemical Reactions:802.2 ; Chemical Products Generally:804
ESI学科分类	ENGINEERING
Scopus记录号	2-s2.0-85131445242
来源库	Scopus
引用统计	被引频次[WOS]：7
成果类型	期刊论文
条目标识符	http://sustech.caswiz.com/handle/2SGJ60CL/355689
专题	工学院_力学与航空航天工程系
作者单位	1.Guangdong Provincial Key Laboratory of Turbulence Research and Applications,Department of Mechanics and Aerospace Engineering,Southern University of Science and Technology,Shenzhen,518055,China 2.Guangdong-Hong Kong-Macao Joint Laboratory for Data-Driven Fluid Mechanics and Engineering Applications,Southern University of Science and Technology,Shenzhen,518055,China 3.Department of Mechanics and Maritime Sciences,Chalmers University of Technology,Gothenburg,SE-412 96,Sweden
第一作者单位	力学与航空航天工程系; 南方科技大学
第一作者的第一单位	力学与航空航天工程系
推荐引用方式 GB/T 7714	Lee，Hsu Chew,Dai，Peng,Wan，Minping,et al. A numerical support of leading point concept[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2022,47(55):23444-23461.
APA	Lee，Hsu Chew,Dai，Peng,Wan，Minping,&Lipatnikov，Andrei N..(2022).A numerical support of leading point concept.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,47(55),23444-23461.
MLA	Lee，Hsu Chew,et al."A numerical support of leading point concept".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 47.55(2022):23444-23461.