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.2015013386
pages 853-888

MODELING OF WATER DROP IMPACTIONS IN THE LEIDENFROST REGIME

Jean-Mathieu Senoner
ONERA, The French Aerospace Lab, 31055 Toulouse CEDEX 4, France
Guillaume Castanet
UMR 7563, LEMTA, Universite de Lorraine, ENSEM, Vandoeuvre-les-Nancy, TSA 60604-54518 Vandoeuvre CEDEX, France
Ophelie Caballina
UMR 7563, LEMTA, Universite de Lorraine, ENSEM, Vandoeuvre-les-Nancy, TSA 60604-54518 Vandoeuvre CEDEX, France
P. Villedieu
ONERA, The French Aerospace Lab, 31055 Toulouse CEDEX 4, France

ABSTRACT

Experiments of monosized water drop train impingement on a surface heated well above the Leidenfrost temperature are used to derive empirical and semi empirical models describing the dynamics of the reemited drops for the general case of non-normal impacts. The experimental setup combines shadowgraphy with high-speed imaging to obtain both the size and trajectories of the reemited drops. The obtained data are analyzed to describe the impact dynamics and the properties of the reemited drops: contact time, maximum spread diameter and reemited velocities for the rebound regime, drop diameter and velocity distributions in the splashing regime. In the rebound regime, good agreement of the present experimental data with theoretical predictions of the literature based on a mechanical spring-mass analogy is observed. In the splashing regime, the arithmetic drop diameter distribution appears to evolve from a multimodal distribution at the rebound splashing threshold towards a single mode distribution. For both the rebound and splashing regimes, the initial velocity component tangential to the impinged surface is damped proportionally to the normal Weber number. In the splashing regime, the average velocity of the reemited drops normal to the surface appears almost independent of the normal impact Weber number when normalized by its initial value.


Articles with similar content:

COMPARISONS BETWEEN EXPERIMENTS AND PREDICTIONS BASED ON MAXIMUM ENTROPY FOR THE BREAKUP OF A CYLINDRICAL LIQUID JET
Atomization and Sprays, Vol.5, 1995, issue 6
L. P. Chin, P. C. Hsing, T. Jackson, R. S. Tankin
AN EXPERIMENTAL INVESTIGATION ON THE RELATIVE ROLES OF ENERGY INPUT, SURFACE TENSION, AND VISCOSITY ON THE BREAKUP OF A LIQUID DROP
Atomization and Sprays, Vol.19, 2009, issue 12
M. G. Rasteiro, J. P. Monteiro, Jorge M. M. Barata
DEVELOPMENT OF A SPREAD SUBMODEL FOR SPRAY/WALL IMPACTION
Atomization and Sprays, Vol.28, 2018, issue 10
Zahra Firouznia, Hassan Khaleghi, Sajad Yazdanparast, MohammadReza Keshtkar
Effect of the Vapor Flow on the Drop Spreading in the Leidenfrost Regime
International Heat Transfer Conference 15, Vol.28, 2014, issue
Guillaume Castanet, Alexandre Labergue, Michel GRADECK, Fabrice Lemoine, Ophelie Caballina
STUDY OP LIQUID ENTRAINMENT IN GAS-LIQUID CONTACTORS AND VAPOUR GENERATORS
International Heat Transfer Conference 8, Vol.5, 1986, issue
Jacob Thomas, R. K. Mittal, J. P. Gupta