Energy stable numerical scheme for the viscous Cahn-Hilliard-Navier-Stokes equations with moving contact line

被引:6
|
作者
Cherfils, Laurence [1 ]
Petcu, Madalina [2 ,3 ,4 ]
机构
[1] Univ La Rochelle, Lab Sci Ingn Environm, UMR CNRS 7356, Ave Michel Crepeau, La Rochelle 1, France
[2] Univ Poitiers, Lab Math & Applicat, UMR CNRS 7348, Poitiers, France
[3] Romanian Acad, Inst Math, Bucharest, Romania
[4] Romanian Acad, Inst Stat & Appl Math, Bucharest, Romania
关键词
backward Euler scheme; dynamic boundary conditions; finite element method; moving contact line; Navier-Stokes equations; viscous Cahn-Hilliard equations; well-posedness; DIFFUSE INTERFACE MODEL; PHASE-FIELD MODEL; INCOMPRESSIBLE FLUIDS; 2-PHASE FLUID; EFFICIENT; SYSTEM; FLOWS; TIME; APPROXIMATION; DYNAMICS;
D O I
10.1002/num.22341
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
In the present article we study the numerics of the viscous Cahn-Hilliard-Navier-Stokes model, endowed with dynamic boundary conditions which allow us to take into account the interaction between the fluids interface and the moving walls of the physical domain. In what follows, we propose an energy stable temporal scheme for the problem and we prove the stability and the unconditional solvability of the discretization proposed. We also propose a fully discrete scheme for which we prove the stability and the unconditional solvability. Numerical simulations are presented to illustrate the theoretical results.
引用
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页码:1113 / 1133
页数:21
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