A STABILIZING SUBGRID FOR CONVECTION–DIFFUSION PROBLEM [PDF]
A stabilizing subgrid which consists of a single additional node in each triangular element is analyzed by solving the convection–diffusion problem, especially in the case of small diffusion. The choice of the location of the subgrid node is based on minimizing the residual of a local problem inside each element. We study convergence properties of the
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The Dual Characteristic-Galerkin Method
The Dual Characteristic-Galerkin method (DCGM) is conservative, precise and experimentally positive. We present the method and prove convergence and $L^2$-stability in the case of Neumann boundary conditions. In a 2D numerical finite element setting (FEM)
Hecht, Frédéric, Pironneau, Olivier
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Convergence of Convective–Diffusive Lattice Boltzmann Methods
Lattice Boltzmann methods are numerical schemes derived as a kinetic approximation of an underlying lattice gas. A numerical convergence theory for nonlinear convective-diffusive lattice Boltzmann methods is established. Convergence, consistency, and stability are defined through truncated Hilbert expansions.
Elton, Bracy H. +2 more
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NUMERICAL ANALYSIS OF AN INVERSE PROBLEM ORIGINATED IN PHENOMENON OF POLLUTION AIR URBAN
This paper presents the calibration study of a two - dimensional mathematical model for the problem of urban air pollution. It is mainly assumed that air pollution is afected by wind convection, diffusion and chemical reactions of pollutants ...
Aníbal Coronel, Ian Hess
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Multiscale Stochastic Homogenization of Convection-Diffusion Equations [PDF]
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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A Weighted Average Finite Difference Method for the Fractional Convection-Diffusion Equation
A weighted average finite difference method for solving the two-sided space-fractional convection-diffusion equation is given, which is an extension of the weighted average method for ordinary convection-diffusion equations.
Lijuan Su, Pei Cheng
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Topology Optimization of Passive Micromixers Based on Lagrangian Mapping Method
This paper presents an optimization-based design method of passive micromixers for immiscible fluids, which means that the Peclet number infinitely large.
Yuchen Guo +3 more
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Quantitative Study of Non-Linear Convection Diffusion Equations for a Rotating-Disc Electrode. [PDF]
Alshammari FS +4 more
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Convection–diffusion equations with random initial conditions [PDF]
We consider an evolution equation generalising the viscous Burgers equation supplemented by an initial condition which is a homogeneous random field. We develop a non-linear framework enabling us to show the existence and regularity of solutions as well as their long time behaviour.
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Uniformly convergent extended cubic B-spline collocation method for two parameters singularly perturbed time-delayed convection-diffusion problems. [PDF]
Negero NT.
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