Wetting boundary conditions for multicomponent pseudopotential lattice Boltzmann

Autor:	Coelho, Rodrigo C. V., Moura, Catarina B., da Gama, Margarida M. Telo, Araújo, Nuno A. M.
Rok vydání:	2020
Předmět:	Physics - Computational Physics Condensed Matter - Soft Condensed Matter Physics - Fluid Dynamics
Druh dokumentu:	Working Paper
DOI:	10.1002/fld.4988
Popis:	The implementation of boundary conditions is among the most challenging parts of modeling fluid flow through channels and complex media. Here, we show that the existing methods to deal with liquid-wall interactions using multicomponent Lattice Boltzmann are accurate when the wall is aligned with the main axes of the lattice but fail otherwise. To solve this problem, we extend a strategy previously developed for multiphase models. As an example, we study the coalescence of two droplets on a curved surface in two dimensions. The strategy proposed here is of special relevance for binary flows in complex geometries. Comment: 12 pages, 8 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2009.12584 Zobrazit plný text záznamu View this record from Arxiv