Results 231 to 240 of about 216,818 (306)

Schwarz alternating algorithms for a convection–diffusion problem

Applied Mathematics and Computation, 2005
The author develops an upwind difference scheme for a convection diffusion problem using piecewise equidistant meshes which exhibit uniform convergence in the perturbation parameter. An estimation of convergence and a decomposition algorithm on overlapping subdomains are discussed and developed. A number of numerical experiments is also presented.
Igor Boglaev
exaly   +3 more sources

A Parallel Schwarz Method for a Convection-Diffusion Problem

SIAM Journal on Scientific Computing, 2000
A new parallel convection-diffusion solver, which may be incorporated in Navier-Stokes solver for three-dimensional channel flow at moderately large Reynolds number is presented in this paper. Problems with transport vectors with small deviations from the prescribed downwind direction are solved by the two-level Schwarz method.
Marc Garbey, Yuri A. Kuznetsov, Yuri V. Vassilevski   +2 more
openaire   +3 more sources

Asymptotic Analysis and Shishkin-Type Decomposition for an Elliptic Convection–Diffusion Problem

Journal of Mathematical Analysis and Applications, 2001
Martin Stynes, Torsten Lins
exaly   +2 more sources

The SDFEM for a Convection-Diffusion Problem with a Boundary Layer: Optimal Error Analysis and Enhancement of Accuracy

SIAM Journal on Numerical Analysis, 2003
Martin Stynes, Lutz Tobiska
exaly   +2 more sources

A hybrid difference scheme for a singularly perturbed convection-diffusion problem with discontinuous convection coefficient

Applied Mathematics and Computation, 2005
Zhongdi Cen
exaly   +2 more sources

Radial integration boundary element method for solving two-dimensional unsteady convection–diffusion problem

Engineering analysis with boundary elements, 2019
Numerical solution of two-dimensional unsteady convection–diffusion problem is carried out by using the radial integration boundary element method in the paper.
Hai‐Feng Peng, Kai Yang, M. Cui, Xiaowei Gao   +3 more
semanticscholar   +1 more source

An ϵ-uniform hybrid numerical scheme for a singularly perturbed degenerate parabolic convection–diffusion problem

International Journal of Computational Mathematics, 2018
In this paper, we study the numerical solution of singularly perturbed degenerate parabolic convection–diffusion problem on a rectangular domain. The solution of the problem exhibits a parabolic boundary layer in the neighbourhood of x=0.
A. Majumdar, S. Natesan
semanticscholar   +1 more source

Optimization analysis of the inverse coefficient problem for the nonlinear convection-diffusion-reaction equation

Journal of Inverse and Ill-Posed Problems, 2018
The inverse coefficient problem for the nonlinear convection-diffusion-reaction equation is considered. A velocity vector and a mass-transfer coefficient are considered as the unknown coefficients and are recovered with the help of the additional ...
R. Brizitskii, Z. Saritskaya
exaly   +2 more sources

The Backward Problem of Stochastic Convection–Diffusion Equation

Bulletin of the Malaysian Mathematical Sciences Society, 2022
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Feng, Xiaoli, Zhao, Lizhi
openaire   +2 more sources