On the evolution of n-octane atomization characteristics using an air-assisted intermittent spray method

doi:10.1016/j.fuproc.2022.107231

	On the evolution of n-octane atomization characteristics using an air-assisted intermittent spray method
	Wu, Hao 1,2; Zhang, Fujun 1; Zhang, Zhenyu 1,2; Wu K(吴坤)3; Fan XJ(范学军)3
通讯作者	Zhang, Zhenyu(zhenyu.zhang@bit.edu.cn)
发表期刊	FUEL PROCESSING TECHNOLOGY
	2022-06-15
卷号	231 页码:17
ISSN	0378-3820
摘要	In this study, droplet size and velocity of an intermittent air-assisted n-octane spray were measured using a Phase Doppler Particle Analyzer, focusing on the effect of operating parameters on time-resolved droplet behavior and local gas flow characteristics. An electro-magnetically actuated air-assisted injector, which features internal gas liquid premixing upstream and releasing through an annular nozzle, was used to generate intermittent sprays. The sampling time equalization method is employed to examine the time-resolved spray microscopic characteristics with various injection control parameters and spatial sampling positions. The droplet diameter range is found to be generally independent of air injection duration and sampling time while droplet velocity is correlated with these two parameters. A large air injection duration tends to accelerate droplets in the late spray period and leads to an increasing normalized gas flow velocity. Estimation of local gas flow turbulence intensity indicates a prominent radial sampling position dependence due to the rapid attenuation of the gas flow velocity away from the spray axis. A noteworthy finding for this intermittent air-assisted spray is that at 30 mm from the nozzle outlet, the zero point of droplet-gas mean slip velocity shifts toward the nozzle with sampling time. The time bin size employed to divide the sampling time has been proved to exert no influence on the statistical results of transient spray microscopic characteristics.
关键词	Air-assisted spray Droplet size-velocity joint probability density function Sauter Mean Diameter Turbulent intensity Slip velocity
DOI	10.1016/j.fuproc.2022.107231
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000791148500006
关键词[WOS]	TWIN-FLUID ATOMIZATION ; VISCOUS-LIQUIDS ; FUEL-INJECTION ; DROPLET SIZE ; PRESSURE ; JET ; PARAMETERS ; DYNAMICS ; FIELD ; LADEN
WOS研究方向	Chemistry ; Energy & Fuels ; Engineering
WOS类目	Chemistry, Applied ; Energy & Fuels ; Engineering, Chemical
资助项目	National Natural Science Foundation of China[51806013] ; Foundation research funds of the Ministry of Industry and Information Technology[WDZC-2019-JGKK-02] ; Foundation research funds of the Ministry of Industry and Information Technology[JCKY2019602D018] ; Beijing Institute of Technology Research Fund Program for Young Scholars[2020CX04047]
项目资助者	National Natural Science Foundation of China ; Foundation research funds of the Ministry of Industry and Information Technology ; Beijing Institute of Technology Research Fund Program for Young Scholars
论文分区	一类
力学所作者排名	3+
RpAuthor	Zhang, Zhenyu
引用统计	被引频次：4[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/89082
专题	高温气体动力学国家重点实验室
作者单位	1.Beijing Inst Technol, Sch Mech Engn, Beijing 100081, Peoples R China; 2.Yangtze Delta Reg Acad Beijing Inst Technol, Jiaxing 314011, Zhejiang, Peoples R China; 3.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Wu, Hao,Zhang, Fujun,Zhang, Zhenyu,et al. On the evolution of n-octane atomization characteristics using an air-assisted intermittent spray method[J]. FUEL PROCESSING TECHNOLOGY,2022,231:17.
APA	Wu, Hao,Zhang, Fujun,Zhang, Zhenyu,吴坤,&范学军.(2022).On the evolution of n-octane atomization characteristics using an air-assisted intermittent spray method.FUEL PROCESSING TECHNOLOGY,231,17.
MLA	Wu, Hao,et al."On the evolution of n-octane atomization characteristics using an air-assisted intermittent spray method".FUEL PROCESSING TECHNOLOGY 231(2022):17.

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