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.v8.i5.50
pages 565-600

A COMPARATIVE STUDY OF ROOM-TEMPERATURE AND COMBUSTING FUEL SPRAYS NEAR THE INJECTOR TIP USING INFRARED LASER DIAGNOSTICS

Terry Parker
Florida Polytechnic University, Lakeland, FL 33805, USA
L. R. Rainaldi
The Colorado School of Mines, Golden, Colorado, USA
W. T. Rawlins
Physical Sciences, Inc., Andover, Massachusetts, USA

ABSTRACT

This article describes an investigation of diesel sprays using multiple-wavelength extinction to probe the region of high droplet number density surrounding the injector tip. Multiple-wavelength extinction used lasers at 9.2 and 0.633 μm coaligned and focused into a 0.25 mm beam as it traversed the spray. The diagnostic technique is discussed in detail, along with the effect of size distributions on the measurement. Droplet sizes for a room-ambient system, high-pressure and room-temperature system, and a combusting spray system are presented. For the room-ambient sprays, the droplet diameters were typically between 5 and 8 μm for locations 5,10,15, and 25 mm from the injector tip. The behavior of the high-temperature combusting spray was markedly different than its room-temperature counterpart as little as 10 mm from the injector tip. High-temperature fuel sprays displayed an initial period with steady droplet number densities followed by an apparent ignition and subsequent significant temporal variation in number density. Droplet diameters were observed to be near 3.5 μm for the combusting system. Comparisons of these results with predictions based on published correlations for primary and secondary breakup are also presented.


Articles with similar content:

STUDY OF AMBIENT TURBULENCE EFFECTS ON DIESEL SPRAYS IN A FAN-STIRRED VESSEL
Atomization and Sprays, Vol.16, 2006, issue 6
Tamas Jakubik, Malcolm Lawes, Miroslav Jicha, Robert M. Woolley
LIQUID- AND VAPOR-PHASE DYNAMICS OF A SOLID-CONE PRESSURE SWIRL ATOMIZER
Atomization and Sprays, Vol.4, 1994, issue 2
James E. Peters, James A. Drallmeier
EFFECT OF SPLIT INJECTION ON THE MACROSCOPIC DEVELOPMENT AND ATOMIZATION CHARACTERISTICS OF A DIESEL SPRAY INJECTED THROUGH A COMMON-RAIL SYSTEM
Atomization and Sprays, Vol.16, 2006, issue 5
Rolf D. Reitz, Chang Sik Lee, Sungwook Park
A COMPARISON OF DIESEL AND JATROPHA METHYL ESTER (JME) SPRAY CHARACTERISTICS: EFFECT OF NOZZLE ENTRY RADIUS
Atomization and Sprays, Vol.26, 2016, issue 10
R. V. Ravikrishna, Prasad Boggavarapu
SPRAY CHARACTERISTICS OF A FLOW-BLURRING ATOMIZER
Atomization and Sprays, Vol.20, 2010, issue 9
Ajay Agrawal, Benjamin M. Simmons