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An equal-order hybridized discontinuous Galerkin method with a small pressure penalty parameter for the Stokes equations

期刊: COMPUTERS & MATHEMATICS WITH APPLICATIONS, 2021; 93 ()

In this paper, an equal-order hybridized discontinuous Galerkin (HDG) method with a small pressure penalty parameter for the Stokes equations is analy......

Numerical analysis of an unconditionally energy-stable reduced-order finite element method for the Allen-Cahn phase field model & nbsp;

期刊: COMPUTERS & MATHEMATICS WITH APPLICATIONS, 2021; 96 ()

In this paper, a reduced-order finite element (FE) method preserving the unconditional energy-stability is proposed to simulate the Allen-Cahn phase f......

A two-grid method for the phase-field model of photonic band gap optimization

期刊: COMPUTERS & MATHEMATICS WITH APPLICATIONS, 2021; 96 ()

A two-grid method is proposed to solve phase field models, arising from modeling the band gap optimization of photonic crystal design based on the Tra......

Finite volume approximation with ADI scheme and low-rank solver for high dimensional spatial distributed-order fractional diffusion equations

期刊: COMPUTERS & MATHEMATICS WITH APPLICATIONS, 2021; 89 ()

High dimensional conservative spatial distributed-order fractional diffusion equation is discretized by midpoint quadrature rule, Crank-Nicolson metho......

A new two-grid mixed finite element analysis of semi-linear reaction-diffusion equation

期刊: COMPUTERS & MATHEMATICS WITH APPLICATIONS, 2021; 92 ()

A new mixed finite element method is established for solving the semi-linear reaction-diffusion equation based on two-grid discretization. Here, a sym......

Numerical investigation of double-diffusive convection in rectangular cavities with different aspect ratio I: High-accuracy numerical method

期刊: COMPUTERS & MATHEMATICS WITH APPLICATIONS, 2021; 94 ()

In this paper, being based on the idea of dispersion-relation-preserving optimization, a class of high-order high resolution upwind compact schemes wi......

Generating probability distributions on intervals and spheres with application to finite element method

期刊: COMPUTERS & MATHEMATICS WITH APPLICATIONS, 2021; 95 ()

This work aims to build a bridge between probability methods and finite element methods. It starts with considering probability distributions supporte......

Discrete unified gas kinetic scheme for incompressible Navier-Stokes equations

期刊: COMPUTERS & MATHEMATICS WITH APPLICATIONS, 2021; 97 ()

The discrete unified gas kinetic scheme (DUGKS) combines the advantages of both the unified gas kinetic scheme (UGKS) and the lattice Boltzmann method......

Two-step MPS-MFS ghost point method for solving partial differential equations

期刊: COMPUTERS & MATHEMATICS WITH APPLICATIONS, 2021; 94 ()

The fictitious boundary surrounding the domain is required in the implementation of the method of fundamental solutions (MFS). A similar approach of t......

Fast second-order implicit difference schemes for time distributed-order and Riesz space fractional diffusion-wave equations

期刊: COMPUTERS & MATHEMATICS WITH APPLICATIONS, 2021; 94 ()

In this paper, fast numerical methods are established to solve a class of time distributed-order and Riesz space fractional diffusion-wave equations. ......

Low-order nonconforming brick elements for the 3D Brinkman model

期刊: COMPUTERS & MATHEMATICS WITH APPLICATIONS, 2021; 98 ()

This work gives a general framework for the convergence analysis of low-order nonconforming elements for the 3D Brinkman model over cubical meshes, in......

Preconditioned iterative method for nonsymmetric saddle point linear systems

期刊: COMPUTERS & MATHEMATICS WITH APPLICATIONS, 2021; 98 ()

In this paper, a new preconditioned iterative method is presented to solve a class of nonsymmetric nonsingular or singular saddle point problems. The ......

Numerical analysis of Finite-Difference Time-Domain method for 2D/3D Maxwell's equations in a Cole-Cole dispersive medium

期刊: COMPUTERS & MATHEMATICS WITH APPLICATIONS, 2021; 93 ()

Two efficient numerical schemes based on L1 formula and Finite-Difference Time-Domain (FDTD) method are constructed for Maxwell's equations in a Cole-......

Plane wave discontinuous Galerkin methods for the Helmholtz equation and Maxwell equations in anisotropic media

期刊: COMPUTERS & MATHEMATICS WITH APPLICATIONS, 2021; 97 ()

In this paper we are concerned with plane wave discontinuous Galerkin (PWDG) methods for Helmholtz equation and time-harmonic Maxwell equations in thr......

A space-time backward substitution method for three-dimensional advection-diffusion equations

期刊: COMPUTERS & MATHEMATICS WITH APPLICATIONS, 2021; 97 ()

A meshless numerical scheme, named as space-time backward substitution method (STBSM), is proposed for 3D unsteady advection-diffusion equations (ADEs......

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