Generalized SAV-exponential integrator schemes for Allen--Cahn type gradient flows

L Ju, X Li, Z Qiao - SIAM journal on numerical analysis, 2022 - SIAM
The energy dissipation law and the maximum bound principle (MBP) are two important
physical features of the well-known Allen--Cahn equation. While some commonly used first …

Explicit third-order unconditionally structure-preserving schemes for conservative Allen–Cahn equations

H Zhang, J Yan, X Qian, X Chen, S Song - Journal of Scientific Computing, 2022 - Springer
Compared with the well-known classical Allen–Cahn equation, the modified Allen–Cahn
equation, which is equipped with a nonlocal Lagrange multiplier or a local-nonlocal …

High-order supplementary variable methods for thermodynamically consistent partial differential equations

Q Hong, Q Wang, Y Gong - Computer Methods in Applied Mechanics and …, 2023 - Elsevier
In recent years, there has been growing interest in develo** numerical methods to retain
consistency between the partial differential equation system and its deduced equations (eg …

Third-order accurate, large time-step** and maximum-principle-preserving schemes for the Allen-Cahn equation

H Zhang, X Qian, S Song - Numerical Algorithms, 2024 - Springer
We present and evaluate several explicit, large time-step** algorithms for the Allen-Cahn
equation. Our approach incorporates a stabilization technique and uses Taylor series …

A linear second-order maximum bound principle-preserving BDF scheme for the Allen-Cahn equation with a general mobility

D Hou, L Ju, Z Qiao - Mathematics of Computation, 2023 - ams.org
In this paper, we propose and analyze a linear second-order numerical method for solving
the Allen-Cahn equation with a general mobility. The proposed fully-discrete scheme is …

Positivity Preserving and Mass Conservative Projection Method for the Poisson–Nernst–Planck Equation

F Tong, Y Cai - SIAM Journal on Numerical Analysis, 2024 - SIAM
We propose and analyze a novel approach to construct structure preserving approximations
for the Poisson–Nernst–Planck equations, focusing on the positivity preserving and mass …

Unconditionally maximum principle-preserving linear method for a mass-conserved Allen–Cahn model with local Lagrange multiplier

J Yang, J Kim - Communications in Nonlinear Science and Numerical …, 2024 - Elsevier
In this work, we present a conservative Allen–Cahn (CAC) equation and investigate its
unconditionally maximum principle-preserving linear numerical scheme. The operator …

Fast and stable dimension splitting simulations for the hydrodynamically coupled three-component conserved Allen–Cahn phase field model

Y Yang, Y Wang, X **ao, X Feng - International Journal of Multiphase Flow, 2024 - Elsevier
In this study, an efficient dimension splitting method is developed for solving the coupled
system of three-component conserved Allen–Cahn model and incompressible Navier …

A structure-preserving, upwind-SAV scheme for the degenerate Cahn–Hilliard equation with applications to simulating surface diffusion

QA Huang, W Jiang, JZ Yang, C Yuan - Journal of Scientific Computing, 2023 - Springer
This paper establishes a structure-preserving numerical scheme for the Cahn–Hilliard
equation with degenerate mobility. First, by applying a finite volume method with upwind …

An energy stable linear numerical method for thermodynamically consistent modeling of two-phase incompressible flow in porous media

J Kou, X Wang, S Du, S Sun - Journal of Computational Physics, 2022 - Elsevier
In this paper, we consider numerical approximation of a thermodynamically consistent
model of two-phase flow in porous media, which obeys an intrinsic energy dissipation law …