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: 1.262 5年影响因子: 1.518 SJR: 0.814 SNIP: 1.18 CiteScore™: 1.6

ISSN 打印: 1044-5110
ISSN 在线: 1936-2684

卷:
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.2014007885
pages 281-302

LARGE EDDY SIMULATION OF SINGLE DROPLET AND LIQUID JET PRIMARY BREAKUP USING A COUPLED LEVEL SET/VOLUME OF FLUID METHOD

Feng Xiao
Science and Technology on Scramjet Laboratory, National University of Defense Technology, Changsha, HuNan, 410073, China
M. Dianat
Department of Aeronautical and Automotive Engineering, Loughborough University, Leicestershire, United Kingdom
James J. McGuirk
Department of Aeronautical and Automotive Engineering, Loughborough University, Leicestershire, United Kingdom

ABSTRACT

Numerical modeling of primary breakup of a liquid jet under the influence of strong aerodynamic and turbulence effects is very challenging, especially for high liquid/gas density ratio O (1000). A robust algorithm for large eddy simulation (LES) of two-phase flows is presented here. A coupled level set and volume of fluid (CLSVOF) technique is applied as the interface-tracking method in order to combine the advantages of level set and volume of fluid methods. The governing equations are discretized by introducing an extrapolated liquid velocity to minimize the interface momentum error. Since experimental studies on breakup of a single liquid drop in uniform gas flow are well documented, this test case is first used to validate the developed two-phase flow LES method. It is shown that the predicted drop breakup agrees quantitatively well with experiments for different Weber numbers. The solver is then applied to simulate primary breakup of liquid jets, which are more relevant to industrial applications. By simulating single round water jet atomization in high-speed coaxial airflow, it is found that the predicted liquid core breakup lengths at different air/liquid velocities agree closely with measured data, but only when appropriate turbulent inflow conditions are specified.


Articles with similar content:

EMBEDDED DNS CONCEPT FOR SIMULATING THE PRIMARY BREAKUP OF AN AIRBLAST ATOMIZER
Atomization and Sprays, Vol.26, 2016, issue 3
Johannes Janicka, Amsini Sadiki, Benjamin Sauer
DIRECT NUMERICAL AND LARGE-EDDY SIMULATION OF PRIMARY ATOMIZATION IN COMPLEX GEOMETRIES
Atomization and Sprays, Vol.23, 2013, issue 11
Peter Brady, Mark Owkes, Olivier Desjardins, Jeremy McCaslin
TOWARD USING DIRECT NUMERICAL SIMULATION TO IMPROVE PRIMARY BREAK-UP MODELING
Atomization and Sprays, Vol.23, 2013, issue 11
Zakaria Bouali, Francois-Xavier Demoulin, P. Desjonqueres, Bernard Duret, Thibaut Menard, Julien Reveillon
A CONSERVATIVE FRAMEWORK FOR PRIMARY ATOMIZATION COMPUTATION AND APPLICATION TO THE STUDY OF NOZZLE AND DENSITY RATIO EFFECTS
Atomization and Sprays, Vol.23, 2013, issue 12
Vincent Le Chenadec, Heinz Pitsch
AVERAGE DROPLET DIAMETER SPATIAL DISTRIBUTION IN A SPRAY AFTER GAS-ASSISTED PREMIXED ATOMIZATION
Atomization and Sprays, Vol.21, 2011, issue 8
Konstantin Pougatch, J. McMillan, Martha Eva Salcudean