Results 131 to 140 of about 278,997 (212)

An HDG Method for Convection Diffusion Equation

Journal of Scientific Computing, 2015
A new hybridizable discontinuous Galerkin (HDG) method for the convection-diffusion problem on general polyhedral meshes is presented. This new HDG method is a generalization of HDG methods for linear elasticity introduced in [\textit{W. Qiu} et al., ``An HDG method for linear elasticity with strong symmetric stresses'', \url{arXiv:1312.1407}] to ...
Qiu, Weifeng, Shi, Ke
openaire   +2 more sources

Supercloseness of linear finite element method on Bakhvalov-type meshes for singularly perturbed convection-diffusion equation in 1D

Applied Mathematics Letters, 2021
In this article, a singularly perturbed convection–diffusion equation is solved by a linear finite element method on Bakhvalov-type meshes. By means of a novel interpolation to the solution, a supercloseness result is obtained on Bakhvalov-type meshes ...
Jin Zhang, Xiaowei Liu
semanticscholar   +1 more source

New formulas of the high‐order derivatives of fifth‐kind Chebyshev polynomials: Spectral solution of the convection–diffusion equation

Numerical Methods for Partial Differential Equations, 2021
This paper is dedicated to deriving novel formulae for the high‐order derivatives of Chebyshev polynomials of the fifth‐kind. The high‐order derivatives of these polynomials are expressed in terms of their original polynomials.
W. Abd-Elhameed, Youssri Hassan Youssri
semanticscholar   +1 more source

A time fractional convection–diffusion equation to model gas transport through heterogeneous soil and gas reservoirs

Physica A: Statistical Mechanics and its Applications, 2018
Fractional-derivative models have been developed recently to interpret various hydrologic dynamics, such as dissolved contaminant transport in groundwater.
A. Chang   +6 more
semanticscholar   +1 more source

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