Experimental and numerical investigations on internal flow characteristics of diesel nozzle under real fuel injection conditions

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	Experimental and numerical investigations on internal flow characteristics of diesel nozzle under real fuel injection conditions
	Wang, Xiang 1; Li, Ke 2; Su, Wanhua 3
刊名	EXPERIMENTAL THERMAL AND FLUID SCIENCE
	2012-10-01
卷号	42 期号:0 页码:204-211
关键词	Diesel nozzle Cavitation Pressure fluctuation Bubble mean dynamic behavior
ISSN号	0894-1777
通讯作者	Wang, X
英文摘要	The internal flow characteristics of a single-hole diesel nozzle under the real fuel injection condition have been intensively explored through a combination of experimental measurements and numerical modeling with a two fluid approach. The pressure fluctuations upstream the nozzle hole, the evolution of cavitation content inside the nozzle hole and the mean dynamic behavior of local bubbles have been particularly analyzed. The results indicate that the pressure close to the inlet of nozzle hole fluctuates more drastically as the average injection pressure increases, and the internal flow of nozzle hole corresponding to the coexistence of pressure fluctuations and cavitation is inherently unsteady and complicated. It is of interest that the cavitation content and the liquid mass flow rate inside the nozzle hole indicate a close association with the variations of pressure change rate and pressure at the nozzle inlet, respectively, and as the spatial location of bubbles inside the nozzle hole obviously varies the mean dynamic behavior of these bubbles show distinct responses to upstream pressure fluctuations. (C) 2012 Elsevier Inc. All rights reserved.
WOS标题词	Science & Technology ; Physical Sciences ; Technology
类目[WOS]	Thermodynamics ; Engineering, Mechanical ; Physics, Fluids & Plasmas
研究领域[WOS]	Thermodynamics ; Engineering ; Physics
关键词[WOS]	CAVITATION ; MODEL
收录类别	SCI
语种	英语
WOS记录号	WOS:000307989600022
公开日期	2013-10-14
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.ipe.ac.cn/handle/122111/3218]
专题	过程工程研究所_多相复杂系统国家重点实验室
作者单位	1.Chinese Acad Sci, State Key Lab Multiphase Complex Syst, Inst Proc Engn, Beijing 100190, Peoples R China 2.China Automot Technol & Res Ctr, Tianjin 300162, Peoples R China 3.Tianjin Univ, State Key Lab Engines, Tianjin 300072, Peoples R China
推荐引用方式 GB/T 7714	Wang, Xiang,Li, Ke,Su, Wanhua. Experimental and numerical investigations on internal flow characteristics of diesel nozzle under real fuel injection conditions[J]. EXPERIMENTAL THERMAL AND FLUID SCIENCE,2012,42(0):204-211.
APA	Wang, Xiang,Li, Ke,&Su, Wanhua.(2012).Experimental and numerical investigations on internal flow characteristics of diesel nozzle under real fuel injection conditions.EXPERIMENTAL THERMAL AND FLUID SCIENCE,42(0),204-211.
MLA	Wang, Xiang,et al."Experimental and numerical investigations on internal flow characteristics of diesel nozzle under real fuel injection conditions".EXPERIMENTAL THERMAL AND FLUID SCIENCE 42.0(2012):204-211.