The phase field method for geometric moving interfaces and their numerical approximations

Q Du, X Feng - Handbook of numerical analysis, 2020 - Elsevier
This chapter surveys recent numerical advances in the phase field method for geometric
surface evolution and related geometric nonlinear partial differential equations (PDEs) …

The scalar auxiliary variable (SAV) approach for gradient flows

J Shen, J Xu, J Yang - Journal of Computational Physics, 2018 - Elsevier
We propose a new approach, which we term as scalar auxiliary variable (SAV) approach, to
construct efficient and accurate time discretization schemes for a large class of gradient …

On energy stable, maximum-principle preserving, second-order BDF scheme with variable steps for the Allen--Cahn equation

H Liao, T Tang, T Zhou - SIAM Journal on Numerical Analysis, 2020 - SIAM
In this work, we investigate the two-step backward differentiation formula (BDF2) with
nonuniform grids for the Allen--Cahn equation. We show that the nonuniform BDF2 scheme …

Energy-decreasing exponential time differencing Runge–Kutta methods for phase-field models

Z Fu, J Yang - Journal of Computational Physics, 2022 - Elsevier
Gradient flow models attract much attention these years. The energy naturally decreases
along the direction of gradient flows. In order to preserve this property, various numerical …

A second order BDF numerical scheme with variable steps for the Cahn--Hilliard equation

W Chen, X Wang, Y Yan, Z Zhang - SIAM Journal on Numerical Analysis, 2019 - SIAM
We present and analyze a second order in time variable step BDF2 numerical scheme for
the Cahn--Hilliard equation. The construction relies on a second order backward difference …

A second-order, weakly energy-stable pseudo-spectral scheme for the Cahn–Hilliard equation and its solution by the homogeneous linear iteration method

K Cheng, C Wang, SM Wise, X Yue - Journal of Scientific Computing, 2016 - Springer
We present a second order energy stable numerical scheme for the two and three
dimensional Cahn–Hilliard equation, with Fourier pseudo-spectral approximation in space …

Implicit-explicit scheme for the Allen-Cahn equation preserves the maximum principle

T Tang, J Yang - Journal of Computational Mathematics, 2016 - JSTOR
It is known that the Allen-Chan equations satisfy the maximum principle. Is this true for
numerical schemes? To the best of our knowledge, the state-of-art stability framework is the …

On the maximum principle preserving schemes for the generalized Allen–Cahn equation

J Shen, T Tang, J Yang - Communications in Mathematical Sciences, 2016 - intlpress.com
This paper is concerned with the generalized Allen–Cahn equation with a nonlinear mobility
that may be degenerate, which also includes an advection term appearing in many …

Energy stable higher-order linear ETD multi-step methods for gradient flows: application to thin film epitaxy

W Chen, W Li, C Wang, S Wang, X Wang - Research in the Mathematical …, 2020 - Springer
We discuss how to combine exponential time differencing technique with multi-step method
to develop higher order in time linear numerical scheme that are energy stable for certain …

Modeling and numerical simulation of surfactant systems with incompressible fluid flows on surfaces

M Sun, X Xiao, X Feng, K Wang - Computer Methods in Applied Mechanics …, 2022 - Elsevier
In this paper, we consider the mathematical modeling and numerical approximation for the
fluid-surfactant phase field model coupled with the Navier–Stokes equations on surfaces …