@Article{CiCP-23-1116, author = {}, title = {Wetting Boundary Condition in an Improved Lattice Boltzmann Method for Nonideal Gases}, journal = {Communications in Computational Physics}, year = {2018}, volume = {23}, number = {4}, pages = {1116--1130}, abstract = {

A numerical scheme capable of modeling fluid behavior on wetting surfaces is developed based on an interface-capturing lattice Boltzmann equation model [Q. Lou and Z. Guo, Phys. Rev. E 91, 013302 (2015)], which has not yet been applied to wetting problems. With the proposed numerical scheme, the spurious densities near the solid surfaces can be eliminated and a wide range of equilibrium contact angles can also be reproduced. Further, the equilibrium contact angle on the solid surface, as a simulation parameter, can be given in advance according to the wettability. Numerical tests, including the dynamics behavior of a liquid drop spreading on a smooth surface and the capillary intrusion, demonstrate that the proposed numerical scheme performs well and can eliminate the spurious densities near the solid surface.

}, issn = {1991-7120}, doi = {https://doi.org/10.4208/cicp.OA-2016-0211}, url = {http://global-sci.org/intro/article_detail/cicp/12629.html} }