Abonnement à la biblothèque: Guest
Portail numérique Bibliothèque numérique eBooks Revues Références et comptes rendus Collections
Atomization and Sprays
Facteur d'impact: 1.189 Facteur d'impact sur 5 ans: 1.596 SJR: 0.814 SNIP: 1.18 CiteScore™: 1.6

ISSN Imprimer: 1044-5110
ISSN En ligne: 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.2012004531
pages 1033-1057

THE ENERGY SPECTRUM ANALOGY BREAKUP (SAB) MODEL FOR THE NUMERICAL SIMULATION OF SPRAYS

Chawki Habchi
IFP Energies Nouvelles, let 4 Avenue de Bois-Preau, 92852 Rueil-Malmaison, France

RÉSUMÉ

This paper proposes a new model for liquid droplet breakup. The size of the droplets produced in each breakup regime is computed using new correlations based on the assumption that a breakup energy cascade exists and follows a path similar to that of the turbulent energy cascade. This spectrum analogy breakup (SAB) model allows linking the size of turbulent eddies and the size of droplets formed in each breakup regime (i.e., bag, multimode, shear or thinning, and catastrophic regimes). It may be seen as a unified version of the fractioning induced per acceleration model (Habchi et al., 1997) with the stochastic Lagrangian model (Gorokhovski, 2001). The SAB model has been implemented in the large eddy simulation (LES) AVBP code and validated using experiments. A satisfactory quantitative agreement has been obtained for the statistics on droplets sizes and their velocities and for Weber numbers ranging from 68 to 383, corresponding to most of the breakup regimes already identified by the experiments. In addition, issues related to LES of sprays using a Lagrangian approach with refined grids and a high volume fraction of liquid are discussed and solutions are proposed.


Articles with similar content:

DROPLET SIZE AND VELOCITY CORRELATIONS FOR A COAXIAL AIR BLAST ATOMIZED JET
ICLASS 94
Proceedings of the Sixth International Conference on Liquid Atomization and Spray Systems, Vol.0, 1994, issue
Q.P. Zheng, Arvind Jasuja
A COMPARISON OF DIESEL SPRAYS CFD MODELING APPROACHES: DDM VERSUS Σ-Y EULERIAN ATOMIZATION MODEL
Atomization and Sprays, Vol.26, 2016, issue 7
Jose M. Desantes, Jose M. Pastor, Adrian Pandal, Jose M. Garcia-Oliver
LARGE EDDY SIMULATION OF LIQUID JET ATOMIZATION
Atomization and Sprays, Vol.21, 2011, issue 9
Francois-Xavier Demoulin, Thibaut Menard, J. Chesnel, Julien Reveillon
DIESEL SPRAY CFD SIMULATIONS BASED ON THE Σ-Υ EULERIAN ATOMIZATION MODEL
Atomization and Sprays, Vol.23, 2013, issue 1
Jose M. Pastor, David P. Schmidt, Jose M. Garcia-Oliver, N. Trask, E. Baldwin, Adrian Pandal
Macroscopic Constitutive Law for Mastic Asphalt Mixtures from Multiscale Modeling
International Journal for Multiscale Computational Engineering, Vol.8, 2010, issue 1
Michal Sejnoha, Jan Zeman, Richard Valenta