图书馆订阅: Guest
Begell Digital Portal Begell 数字图书馆 电子图书 期刊 参考文献及会议录 研究收集
雾化与喷雾
影响因子: 1.737 5年影响因子: 1.518 SJR: 0.814 SNIP: 1.18 CiteScore™: 2.2

ISSN 打印: 1044-5110
ISSN 在线: 1936-2684

卷:
卷 30, 2020 卷 29, 2019 卷 28, 2018 卷 27, 2017 卷 26, 2016 卷 25, 2015 卷 24, 2014 卷 23, 2013 卷 22, 2012 卷 21, 2011 卷 20, 2010 卷 19, 2009 卷 18, 2008 卷 17, 2007 卷 16, 2006 卷 15, 2005 卷 14, 2004 卷 13, 2003 卷 12, 2002 卷 11, 2001 卷 10, 2000 卷 9, 1999 卷 8, 1998 卷 7, 1997 卷 6, 1996 卷 5, 1995 卷 4, 1994 卷 3, 1993 卷 2, 1992 卷 1, 1991

雾化与喷雾

DOI: 10.1615/AtomizSpr.2013007347
pages 443-461

STUDY ON MIXING PROCESS OF DIESEL SPRAY UNDER HIGH AMBIENT GAS DENSITY CONDITION

Yoshio Zama
Division of Mechanical Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma, Japan, 376-8515
Wataru Ochiai
Department of Mechanical System Engineering, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma, Japan, 376-8515
Kazuma Sugawara
Department of Mechanical System Engineering, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma, Japan, 376-8515
Tomohiko Furuhata
Division of Mechanical Science and Technology, Faculty of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma, 376-8515, Japan
Masataka Arai
Division of Mechanical Science and Technology, Faculty of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma, 376-8515, Japan; Tokyo Denki University

ABSTRACT

In the up-to-date diesel engine, boost pressure has been increased to improve the thermal efficiency as compared with a conventional diesel engine. High boost pressure results in a high gas density condition in the combustion chamber. Therefore, the mixing process of a diesel spray under high ambient gas density conditions may be different from that of a conventional diesel engine. In this study, particle image velocimetry (PIV) was applied to measurement of the velocity field inside a diesel spray under a high ambient gas density condition. From the results of PIV measurements, the maximum velocity gradient positions inside a spray were evaluated, and the effect of ambient gas density on the maximum velocity gradient position was investigated. It was found that the maximum velocity gradient position relative to the spray periphery shifted from the spray periphery to the center of the spray with increasing ambient gas density. A local equivalence ratio distribution inside the spray was calculated in accordance with momentum conservation and the spray velocity obtained with PIV. It was found that the region with sufficient air for combustion shifted upstream with increasing ambient gas density.


Articles with similar content:

EXPERIMENTAL STUDY ON VELOCITY DISTRIBUTION OF POSTIMPINGEMENT DIESEL SPRAY ON A WALL. PART 1: EFFECT OF IMPINGEMENT ANGLE ON FLOW PATTERN
Atomization and Sprays, Vol.24, 2014, issue 8
Masataka Arai, Yoshio Zama, Tomohiko Furuhata, Mohd Zaid Akop, Kazuma Sugawara
EXPERIMENTAL STUDY ON SPRAY ANGLE AND VELOCITY DISTRIBUTION OF DIESEL SPRAY UNDER HIGH AMBIENT PRESSURE CONDITIONS
Atomization and Sprays, Vol.21, 2011, issue 12
Masataka Arai, Yoshio Zama, Wataru Ochiai, Tomohiko Furuhata
INVESTIGATIONS OF COMMON-RAIL FUEL INJECTION TECHNIQUE IN DI-DIESEL-ENGINES
Proceedings of Symposium on Energy Engineering in the 21st Century (SEE2000) Volume I-IV, Vol.0, 2000, issue
Franz Mayinger, B. Ofner, S. Eisen
QUANTIFYING THE EFFECTS OF FUEL COMPOSITIONS AND PROCESS VARIABLES ON PLANAR SURFACE AREA AND SPRAY NONUNIFORMITY VIA COMBINED MIXTURE-PROCESS DESIGN OF EXPERIMENT
Atomization and Sprays, Vol.27, 2017, issue 8
Yiji Lu, Yanfei Li, Zhixin Liu, Guangze Li, Liuyang Feng, Anthony Paul Roskilly, Longfei Chen
EFFECT OF NOZZLE HOLE GEOMETRY ON NON-EVAPORATING DIESEL SPRAY CHARACTERISTICS AT HIGH-PRESSURE INJECTION
Atomization and Sprays, Vol.22, 2012, issue 1
Jangsik Kong, Choongsik Bae