Inscrição na biblioteca: Guest
Portal Digital Begell Biblioteca digital da Begell eBooks Diários Referências e Anais Coleções de pesquisa
Atomization and Sprays
Fator do impacto: 1.262 FI de cinco anos: 1.518 SJR: 0.814 SNIP: 1.18 CiteScore™: 1.6

ISSN Imprimir: 1044-5110
ISSN On-line: 1936-2684

Volumes:
Volume 29, 2019 Volume 28, 2018 Volume 27, 2017 Volume 26, 2016 Volume 25, 2015 Volume 24, 2014 Volume 23, 2013 Volume 22, 2012 Volume 21, 2011 Volume 20, 2010 Volume 19, 2009 Volume 18, 2008 Volume 17, 2007 Volume 16, 2006 Volume 15, 2005 Volume 14, 2004 Volume 13, 2003 Volume 12, 2002 Volume 11, 2001 Volume 10, 2000 Volume 9, 1999 Volume 8, 1998 Volume 7, 1997 Volume 6, 1996 Volume 5, 1995 Volume 4, 1994 Volume 3, 1993 Volume 2, 1992 Volume 1, 1991

Atomization and Sprays

DOI: 10.1615/AtomizSpr.2013007450
pages 265-278

MACROSCOPIC CHARACTERIZATION OF FLASH-BOILING MULTIHOLE SPRAYS USING PLANAR LASER-INDUCED EXCIPLEX FLUORESCENCE. PART II: CROSS-SECTIONAL SPRAY STRUCTURE

Gaomimg Zhang
School of Mechanical Engineering, Shanghai Jiao Tong University, National Engineering Laboratory of Electronic Control Technology, Shanghai, 200240, China
Min Xu
School of Mechanical Engineering, Shanghai Jiao Tong University, National Engineering Laboratory of Electronic Control Technology, Shanghai, 200240, China
Yuyin Zhang
School of Mechanical Engineering, Shanghai Jiao Tong University, National Engineering Laboratory of Electronic Control Technology, Shanghai, 200240, China
Ming Zhang
Magneti Marelli (China) Co., Ltd.
David J. Cleary
General Motors Global Research and Development, China Science Lab, Shanghai, 201206, China

RESUMO

The cross-sectional fuel distribution of flash-boiling sprays from a multihole direct-injection gasoline injector was investigated by studying spray patterns under various superheated conditions. Planar-laser induced exciplex fluorescence was applied to image the spray liquid and vapor components separately. Fluorobenzene and diethyl-methyl-amine were added into n-hexane as tracers for the vapor and liquid components, respectively. The effects of the fuel temperature and ambient pressure on macroscopic characteristics of the spray were thoroughly investigated. Results show that with increasing superheat degree, the spray gradually transforms from eight individual plumes into a single body structure. Comparing to liquid phase, the vapor phase is easy to transform and to collapse, which is consistent with the previous axial direction observations. However, the cross-sectional view of the flash-boiling spray reveals the process of the interaction among the individual plumes. As the superheated degree increases, the plumes expand to joint together annually. Then the fuel redistributes to form a new plume in the location between the adjacent plumes, which is the result of the strong plume-to-plume interaction that could finally cause the spray collapse.


Articles with similar content:

MACROSCOPIC CHARACTERIZATION OF FLASH-BOILING MULTI-HOLE SPRAYS USING PLANAR LASER INDUCED EXCIPLEX FLUORESCENCE TECHNIQUE. PART I. ON-AXIS SPRAY STRUCTURE
Atomization and Sprays, Vol.22, 2012, issue 10
David J. Cleary, Ming Zhang, Yuyin Zhang, Min Xu, Gaomimg Zhang
FLOW-FIELD INVESTIGATION OF MULTIHOLE SUPERHEATED SPRAYS USING HIGH-SPEED PIV. PART II. AXIAL DIRECTION
Atomization and Sprays, Vol.23, 2013, issue 2
David J. Cleary, Ming Zhang, Yuyin Zhang, Min Xu, Gaomimg Zhang
FLOW-FIELD INVESTIGATION OF MULTI-HOLE SUPERHEATED SPRAYS USING HIGH-SPEED PIV. PART I.
CROSS-SECTIONAL DIRECTION

Atomization and Sprays, Vol.22, 2012, issue 11
David J. Cleary, Ming Zhang, Yuyin Zhang, Min Xu, Gaomimg Zhang
EFFECT OF OPERATING CONDITIONS AND FUEL VOLATILITY ON DEVELOPMENT AND VARIABILITY OF SPRAYS FROM GASOLINE DIRECT-INJECTION MULTIHOLE INJECTORS
Atomization and Sprays, Vol.19, 2009, issue 3
Pavlos Aleiferis, Z. van Romunde
INVESTIGATION OF RAPID ATOMIZATION AND COLLAPSE OF SUPERHEATED LIQUID FUEL SPRAY UNDER SUPERHEATED CONDITIONS
Atomization and Sprays, Vol.26, 2016, issue 12
Hujie Pan, David L. S. Hung, Tianyun Li, Min Xu, Shengqi Wu