High order spatial discretization for variational time implicit schemes: Wasserstein gradient flows and reaction-diffusion systems

G Fu, S Osher, W Li - Journal of Computational Physics, 2023 - Elsevier
We design and compute first-order implicit-in-time variational schemes with high-order
spatial discretization for initial value gradient flows in generalized optimal transport metric …

Thermal-fluid topology optimization with unconditional energy stability and second-order accuracy via phase-field model

Q **a, G Sun, Q Yu, J Kim, Y Li - Communications in Nonlinear Science and …, 2023 - Elsevier
This paper aims to establish a novel and efficient topology optimization method for the
thermal-fluid. To adaptively design the fluid–solid coupling structure and make the objective …

Sufficient Conditions for the Existence and Uniqueness of the Solution of the Dynamics of Biogeochemical Cycles in Coastal Systems Problem

A Sukhinov, Y Belova, A Nikitina, V Sidoryakina - Mathematics, 2022 - mdpi.com
The article considers a three-dimensional mathematical model of population dynamics
based on a system of non-stationary parabolic advection-diffusion-reaction equations with …

An ALE meshfree method for surface PDEs coupling with forced mean curvature flow

N Adil, X **ao, K Wang, X Feng - Journal of Computational Physics, 2023 - Elsevier
In this paper, we propose an arbitrary Lagrangian Eulerian (ALE) meshfree method that
utilizes the radial basis function-finite difference (RBF-FD) method for solving diffusion …

A second-order accurate, operator splitting scheme for reaction-diffusion systems in an energetic variational formulation

C Liu, C Wang, Y Wang - SIAM Journal on Scientific Computing, 2022 - SIAM
A second-order accurate in time, positivity-preserving, and unconditionally energy stable
operator splitting scheme is proposed and analyzed for reaction-diffusion systems with the …

Optimal rate convergence analysis of a numerical scheme for the ternary Cahn–Hilliard system with a Flory–Huggins–deGennes energy potential

L Dong, C Wang, SM Wise, Z Zhang - Journal of Computational and …, 2022 - Elsevier
We present an error analysis for a fully discrete finite difference scheme for the three-
component Macromolecular Microsphere Composite (MMC) hydrogels system, a ternary …

Shape transformation on curved surfaces using a phase-field model

H Kim, S Kang, G Lee, S Yoon, J Kim - Communications in Nonlinear …, 2024 - Elsevier
Shape transformation on evolving curved surfaces is essential for its diverse applications
across various scientific disciplines and facilitates the deeper understanding of natural …

Energy dissipation and maximum bound principle preserving scheme for solving a nonlocal ternary Allen-Cahn model

S Zhai, Z Weng, Y Mo, X Feng - Computers & Mathematics with …, 2024 - Elsevier
We present a new energy dissipation and maximum bound principle preserving scheme for
solving a nonlocal ternary Allen-Cahn (NtAC) model, where the standard Laplace operator …

An effective operator splitting method based on spectral deferred correction for the fractional Gray–Scott model

S Zhai, Z Weng, Q Zhuang, F Liu, V Anh - Journal of Computational and …, 2023 - Elsevier
This paper presents a method by combining the semi-implicit spectral deferred correction
(SDC) method with the operator splitting scheme to simulate the fractional Gray-Scott (GS) …

Second-Order Semi-Lagrangian Exponential Time Differencing Method with Enhanced Error Estimate for the Convective Allen–Cahn Equation

J Li, R Lan, Y Cai, L Ju, X Wang - Journal of Scientific Computing, 2023 - Springer
Abstract The convective Allen–Cahn (CAC) equation has been widely used for simulating
multiphase flows of incompressible fluids, which contains an extra convective term but still …