Title
Unified framework for a side-by-side comparison of different multicomponent algorithms: Lattice Boltzmann vs. phase field model
Abstract
Lattice Boltzmann models (LBM) and phase field models (PFM) are two of the most widespread approaches for the numerical study of multicomponent fluid systems. Both methods have been successfully employed by several authors but, despite their popularity, still remains unclear how to properly compare them and how they perform on the same problem. Here we present a unified framework for the direct (one-to-one) comparison of the multicomponent LBM against the PFM. We provide analytical guidelines on how to compare the Shan-Chen (SC) lattice Boltzmann model for non-ideal multicomponent fluids with a corresponding free energy (FE) lattice Boltzmann model. Then, in order to properly compare the LBM vs. the PFM, we propose a new formulation for the free energy of the Cahn-Hilliard/Navier-Stokes equations. Finally, the LBM model is numerically compared with the corresponding phase field model solved by means of a pseudo-spectral algorithm. This work constitute a first attempt to set the basis for a quantitative comparison between different algorithms for multicomponent fluids. We limit our scope to the few of the most common variants of the two most widespread methodologies, namely the lattice Boltzmann model (SC and FE variants) and the phase field model.
Year
DOI
Venue
2013
10.1016/j.jcp.2012.09.029
J. Comput. Physics
Keywords
Field
DocType
unified framework,non-ideal multicomponent fluid,multicomponent fluid,multicomponent lbm,different multicomponent algorithm,phase field model,lbm model,corresponding phase field model,multicomponent fluid system,fe variant,lattice boltzmann model,corresponding free energy,drop,lattice boltzmann,leakage
Statistical physics,HPP model,Algorithm,Lattice Boltzmann methods,Phase field models,Lattice boltzmann model,Mathematics
Journal
Volume
ISSN
Citations 
234,
0021-9991
4
PageRank 
References 
Authors
0.53
1
6
Name
Order
Citations
PageRank
Luca Scarbolo140.53
Dafne Molin240.87
Prasad Perlekar340.53
M. Sbragaglia4305.62
Alfredo Soldati581.40
federico toschi6308.29