| Issue |
Europhys. Lett.
Volume 45, Number 3, February 1999
|
|
|---|---|---|
| Page(s) | 314 - 320 | |
| Section | Electromagnetism, optics, acoustics, heat transfer, classical mechanics, and fluid dynamics | |
| DOI | https://doi.org/10.1209/epl/i1999-00165-4 | |
| Published online | 01 September 2002 | |
A lattice Boltzmann model of ternary fluid mixtures
1
Istituto Nazionale per la Fisica della Materia
Dipartimento di Fisica, Università di Bari
Istituto Nazionale di Fisica Nucleare, Sezione di Bari
via Amendola 173, 70126 Bari, Italy
2
Department of Physics, Theoretical Physics- 1 Keble Rd.,
Oxford OX1 3NP, UK
Received:
15
June
1998
Accepted:
25
November
1998
A lattice Boltzmann model is introduced which simulates oil-water-surfactant mixtures. The model is based on a Ginzburg-Landau free energy with two scalar order para meters. Diffusive and hydrodynamic transport is included. Results are presented showing how the surfactant diffuses to the oil-water interfaces thus lowering the surface tension and leading to spontaneous emulsification. The rate of emulsification depends on the viscosity of the ternary fluid.
PACS: 47.20.Ma – Interfacial instability / 05.70.Ln – Nonequilibrium and irreversible thermodynamics / 83.10.Lk – Multiphase flows
© EDP Sciences, 1999
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