Volume 82, Number 2, April 2008
Article Number 24005
Number of page(s) 6
Section Electromagnetism, Optics, Acoustics, Heat Transfer, Classical Mechanics, and Fluid Dynamics
Published online 15 April 2008
EPL, 82 (2008) 24005
DOI: 10.1209/0295-5075/82/24005

Lattice Boltzmann spray-like fluids

G. Falcucci1, S. Chibbaro2, 3, S. Succi2, X. Shan4 and H. Chen4

1  Department of Mechanical and Industrial Engineering, University of "Roma Tre" - Via della Vasca Navale 79, Rome, Italy, EU
2  Istituto Applicazioni Calcolo "Mauro Picone", CNR - V.le del Policlinico 137, Rome, Italy, EU
3  Department of Mechanical Engineering, University of "Tor Vergata" - Viale Politecnico, Rome, Italy, EU
4  EXA Corporation - 450 Bedford Street, Lexington, MA 02173, USA

received 27 December 2007; accepted in final form 4 March 2008; published April 2008
published online 15 April 2008

The effect of the competition between short-range attraction and mid-range repulsion in lattice Boltzmann models of single-component non-ideal fluids is investigated. It is shown that the presence of repulsive interactions gives rise to long-lived metastable states in the form of multi-droplet spray-like density configurations, whose size can be adjusted by fine-tuning the strength of the repulsive vs. attractive coupling. This opens up the possibility of using single-component lattice kinetic models to study a new class of complex flow applications, involving atomization, spray formation, micro-emulsions and possibly, glassy-like phenomena as well.

47.11.-j - Computational methods in fluid dynamics.
47.55.Ca - Gas/liquid flows. - Surfactant effects.

© EPLA 2008