Analysis of spray characteristics of a jet film injection element based on Voronoi tessellation

doi:10.1016/j.actaastro.2023.02.006

	Analysis of spray characteristics of a jet film injection element based on Voronoi tessellation
	He CM(何成明); Zhang, Peng 2; He, Zhixia ; Yue LJ(岳连捷)
发表期刊	ACTA ASTRONAUTICA
	2023-05
卷号	206 页码:100-113
ISSN	0094-5765
摘要	The present paper presents a computational study based on a validated Volume of Fluid method on the effects of film thickness and film width on spray characteristics for the simplified jet film injection element with varying mass flow rate conditions. First, the spray characteristics of a typical jet film collision were analyzed in terms of the spatial distribution of Sauter Mean Diameter and Voronoi tessellation. Both the Voronoi diagram and the Sauter Mean Diameter contour are useful to evaluate the spray characteristics because they show two different aspects of the sprays. Second, the jet film spray characteristics were analyzed by decreasing either film thickness or film width to change the mass flow rate. The results show that decreasing film width results in approximately insensitive spray angle and improved uniformity of droplet distribution for different throttleable levels. The present computational results verified our design concept that adopting traditional jet film injection at a large mass flow rate and modified jet jet injection at a small mass flow rate to maintain good spray performance during the entire throttleable levels.
关键词	Liquid rocket engine Pintle injector Spray characteristics Jet film injection Voronoi tessellation
DOI	10.1016/j.actaastro.2023.02.006
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000950774500001
WOS研究方向	Engineering, Aerospace
WOS类目	Engineering
项目资助者	National Science Foundation of China [12102437, 52176134, U2141220] ; Research Grants Council of the Hong Kong Special Administrative Region, China [CityU15222421]
论文分区	二类/Q1
力学所作者排名	1
RpAuthor	Yue, LJ (corresponding author), Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China.
引用统计	被引频次：3[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/311007/91819
专题	高温气体动力学国家重点实验室
作者单位	1.Jiangsu Univ, Inst Energy Res, Zhenjiang 212013, Peoples R China 2.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China 3.City Univ Hong Kong, Dept Mech Engn, Kowloon Tong, Kowloon, Hong Kong 999077, Peoples R China
推荐引用方式 GB/T 7714	He CM,Zhang, Peng,He, Zhixia,et al. Analysis of spray characteristics of a jet film injection element based on Voronoi tessellation[J]. ACTA ASTRONAUTICA,2023,206:100-113.
APA	何成明,Zhang, Peng,He, Zhixia,&岳连捷.(2023).Analysis of spray characteristics of a jet film injection element based on Voronoi tessellation.ACTA ASTRONAUTICA,206,100-113.
MLA	何成明,et al."Analysis of spray characteristics of a jet film injection element based on Voronoi tessellation".ACTA ASTRONAUTICA 206(2023):100-113.

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