[HTML][HTML] A virtual element method for the miscible displacement of incompressible fluids in porous media

LB da Veiga, A Pichler, G Vacca - Computer Methods in Applied Mechanics …, 2021 - Elsevier
In the present contribution, we construct a virtual element (VE) discretization for the problem
of miscible displacement of one incompressible fluid by another, described by a time …

A reduced-order finite element method based on POD for the incompressible miscible displacement problem

J Song, H Rui - Computers & Mathematics with Applications, 2021 - Elsevier
In this paper, we establish a reduced-order finite element (ROFE) method with very few
degrees of freedom for the incompressible miscible displacement problem. Firstly, we …

Analysis of finite element two-grid algorithms for two-dimensional nonlinear Schrödinger equation with wave operator

H Hu, Y Chen - Journal of Computational and Applied Mathematics, 2021 - Elsevier
Two-grid algorithms based on two conservative and implicit finite element methods are
studied for two-dimensional nonlinear Schrödinger equation with wave operator. The …

[HTML][HTML] Numerical solution of two-dimensional nonlinear Schrödinger equation using a new two-grid finite element method

H Hu, Y Chen - Journal of Computational and Applied Mathematics, 2020 - Elsevier
A new two-grid finite element scheme is presented for two-dimensional nonlinear
Schrödinger equation. One Newton iteration is applied on the fine grid to linearize the …

Numerical simulation for a incompressible miscible displacement problem using a reduced-order finite element method based on POD technique

J Song, H Rui - Computational Geosciences, 2021 - Springer
This paper presents a reduced-order finite element (ROFE) method with seldom degrees of
freedom for the incompressible miscible displacement problem, where the proper …

Lp error estimate of nonlinear Schrödinger equation using a two‐grid finite element method

H Hu - Numerical Methods for Partial Differential Equations, 2023 - Wiley Online Library
A two‐grid finite element scheme is presented for nonlinear Schrödinger equation. H 1 H^ 1
superconvergence error estimates of finite element solutions based on L∞ L^ ∞ bound of …

A reduced-order two-grid method based on POD technique for the semilinear parabolic equation

J Song, H Rui - Applied Numerical Mathematics, 2024 - Elsevier
In the conventional two-grid (TG) method, the nonlinear system on the fine grid is
transformed into a nonlinear subsystem on the coarse grid and a linear subsystem on the …

Two-grid finite element methods for space-fractional nonlinear Schrödinger equations

Y Chen, H Hu - Journal of Computational and Applied Mathematics, 2025 - Elsevier
A two-grid finite element method is developed for solving space-fractional nonlinear
Schrödinger equations. The finite element solution in L∞-norm is proved bounded without …

Two‐grid finite element method on grade meshes for time‐fractional nonlinear Schrödinger equation

H Hu, Y Chen, J Zhou - Numerical Methods for Partial …, 2024 - Wiley Online Library
A two‐grid finite element method with nonuniform L1 scheme is developed for solving the
time‐fractional nonlinear Schrödinger equation. The finite element solution in the L p L^ p …

Second-order efficient algorithm for coupled nonlinear model of groundwater transport system

Y Song, W Liu, G Fan - Journal of Mathematical Analysis and Applications, 2024 - Elsevier
In this paper, an efficient modified two-grid block-centered finite difference algorithm with
second-order backward difference formula is presented for coupled nonlinear reaction …