Ternary Free-Energy Entropic Lattice Boltzmann Model with a High Density Ratio

Wöhrwag, Moritz, Semprebon, Ciro, Mazloomi Moqaddam, A., Karlin, Ilya and Kusumaatmaja, Halim (2018) Ternary Free-Energy Entropic Lattice Boltzmann Model with a High Density Ratio. Physical Review Letters, 120 (23). p. 234501. ISSN 0031-9007

[img]
Preview
Text
PhysRevLett.120.234501.pdf - Published Version
Available under License Creative Commons Attribution 4.0.

Download (1MB) | Preview
Official URL: http://dx.doi.org/10.1103/PhysRevLett.120.234501

Abstract

A thermodynamically consistent free energy model for fluid flows comprised of one gas and two liquid components is presented and implemented using the entropic lattice Boltzmann scheme. The model allows a high density ratio, up to the order of O(103), between the liquid and gas phases, and a broad range of surface tension ratios, covering partial wetting states where Neumann triangles are formed, and full wetting states where complete encapsulation of one of the fluid components is observed. We further demonstrate that we can capture the bouncing, adhesive, and insertive regimes for the binary collisions between immiscible droplets suspended in air. Our approach opens up a vast range of multiphase flow applications involving one gas and several liquid components.

Item Type: Article
Subjects: F300 Physics
Department: Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User: Becky Skoyles
Date Deposited: 28 Jun 2018 14:26
Last Modified: 11 Dec 2018 15:01
URI: http://nrl.northumbria.ac.uk/id/eprint/34748

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year

View more statistics


Policies: NRL Policies | NRL University Deposit Policy | NRL Deposit Licence