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A two-grid discretization method for nonlinear Schrodinger equation by mixed finite element methods

期刊: COMPUTERS & MATHEMATICS WITH APPLICATIONS, 2023; 130 ()

In this paper, we investigate a two-grid discretization method for the two-dimensional time-dependent nonlinear Schrodinger equation by mixed finite e......

A two level finite element method for Stokes constrained Dirichlet boundary control problem

期刊: COMPUTERS & MATHEMATICS WITH APPLICATIONS, 2023; 129 ()

In this paper we present a finite element analysis for a Dirichlet boundary control problem governed by the Stokes equation. The Dirichlet control is ......

Scalable fully implicit methods for subsurface flows in porous media with fractional derivative

期刊: COMPUTERS & MATHEMATICS WITH APPLICATIONS, 2023; 134 ()

In this paper, we introduce and study a highly scalable domain decomposition based solver for the fully implicit solution of subsurface flows in porou......

Unconditional energy stability and temporal convergence of first-order numerical scheme for the square phase-field crystal model

期刊: COMPUTERS & MATHEMATICS WITH APPLICATIONS, 2023; 143 ()

This paper presents a sixth-order nonlinear parabolic problem of the square phase-field crystal model. We first demonstrate the time-discrete backward......

Revisiting the second-order convergence of the lattice Boltzmann method with reaction-type source terms

期刊: COMPUTERS & MATHEMATICS WITH APPLICATIONS, 2023; 144 ()

This study analyses an approach to consistently recover the second-order convergence of the lattice Boltzmann method (LBM), which is frequently degrad......

Highly efficient variant of SAV approach for the incompressible multi-component phase-field fluid models

期刊: COMPUTERS & MATHEMATICS WITH APPLICATIONS, 2023; 145 ()

Here, we study the multi-component Cahn-Hilliard (multiCH) system and the three-phase fluid system by a novel numerical scheme. The nonlinear terms in......

Space-time adaptivity for a multi-scale cancer invasion model

期刊: COMPUTERS & MATHEMATICS WITH APPLICATIONS, 2023; 146 ()

The parallel space-time adaptivity techniques for solving a cancer invasion model are investigated in the present work. Mathematically, the model comp......

The analogue of grad-div stabilization in DG method for a coupled Stokes and Darcy problem

期刊: COMPUTERS & MATHEMATICS WITH APPLICATIONS, 2023; 149 ()

Many stable and convergent numerical methods are not pressure robust for an incompressible flow problem, due to the relaxation of a discrete divergenc......

A comparison of non-matching techniques for the finite element approximation of interface problems

期刊: COMPUTERS & MATHEMATICS WITH APPLICATIONS, 2023; 151 ()

We perform a systematic comparison of various numerical schemes for the approximation of interface problems. We consider unfitted approaches in view o......

Polyhedral control-net splines for analysis

期刊: COMPUTERS & MATHEMATICS WITH APPLICATIONS, 2023; 151 ()

Generalizing tensor-product splines to smooth functions whose control nets can outline more general topological polyhedra, bi-cubic polyhedral-net spl......

Efficient energy-preserving finite difference schemes for the Klein-Gordon-Schrödinger equations

期刊: COMPUTERS & MATHEMATICS WITH APPLICATIONS, 2023; 149 ()

In this study, we construct three efficient and conservative high-order accurate finite difference schemes for solving the Klein-Gordon-Schrodinger eq......

A novel spectral method and error estimates for fourth-order problems with mixed boundary conditions in a cylindrical domain

期刊: COMPUTERS & MATHEMATICS WITH APPLICATIONS, 2023; 152 ()

In this paper, a novel spectral method is presented and studied for the fourth order problem with mixed boundary in a cylindrical domain. The basic id......

Determination of a space-dependent source in the thermal-wave model of bio-heat transfer

期刊: COMPUTERS & MATHEMATICS WITH APPLICATIONS, 2023; 129 ()

We consider linear but ill-posed inverse problems consisting of finding the unknown space-dependent source in the thermal-wave model of bio-heat trans......

An immersed finite element method for elliptic interface problems on surfaces

期刊: COMPUTERS & MATHEMATICS WITH APPLICATIONS, 2023; 131 ()

In this article, an immersed finite element approach is presented for solving interface problems of elliptic PDEs on curved surfaces. Such surface PDE......

Adaptive forcing distance in an immersed boundary method for internal flow simulation at high Reynolds numbers

期刊: COMPUTERS & MATHEMATICS WITH APPLICATIONS, 2023; 140 ()

Future advanced aero-engine features highly complex internal flow mechanisms, such as small gap blade row interactions and coupled fluid-structure int......

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