Efficient, second oder accurate, and unconditionally energy stable numerical scheme for a new hydrodynamics coupled binary phase-field surfactant system
Efficient, second oder accurate, and unconditionally energy stable numerical scheme for a new hydrodynamics coupled binary phase-field surfactant system
复制标题
新型流体动力学耦合二元相场表面活性剂体系的高效、二阶精确且无条件能量稳定的数值方案
DOI:
10.1016/j.cpc.2019.107122
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发表时间:
2020-06
影响因子:
6.3
通讯作者:
Yang Xiaofeng
中科院分区:
文献类型:
--
作者:
Zhang Jun;Chen Chuanjun;Wang Jiangxing;Yang Xiaofeng
In this paper, we consider numerical approximations for a hydrodynamics coupled Cahn–Hilliard phase-field binary fluid-surfactant model. By adding a quartic form of the gradient potential, we first modify the total free energy for the commonly used phase-field surfactant model into a form which is bounded from below and establish the energy law for the new system. Then we combine the Invariant Energy Quadratization approach for the nonlinear potentials, the projection method for the Navier–Stokes equations, and a subtle implicit–explicit treatment for the stress and convective terms, to arrive at a linear and second-order time marching scheme for solving this system. Meanwhile, to enhance the stability, two crucial linear stabilization terms are added into the scheme thus large time steps are allowed in computations. We further prove the well-posedness of the linear system, and its unconditional energy stability rigorously. Various 2D and 3D numerical experiments are performed to validate the accuracy and energy stability of the proposed scheme.
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影响因子:
1.1
作者:
Jie Shen;Xiaofeng Yang
通讯作者:
Jie Shen;Xiaofeng Yang
影响因子:
2
作者:
C. M. Elliott;H. Garcke
通讯作者:
C. M. Elliott;H. Garcke
影响因子:
4.6
作者:
Hu, YT;Pine, DJ;Leal, LG
通讯作者:
Leal, LG
影响因子:
4.6
作者:
Yosang Yoon;Adam S. Hsu;L. Leal
通讯作者:
Yosang Yoon;Adam S. Hsu;L. Leal
DOI:
10.1137/0915089
发表时间:
1994-11
期刊:
SIAM J. Sci. Comput.
影响因子:
--
作者:
Jie Shen
通讯作者:
Jie Shen