Results 11 to 20 of about 179,449 (293)

Finite Difference Method for Two-Sided Two Dimensional Space Fractional Convection-Diffusion Problem with Source Term

open access: yesMathematics, 2020
In this paper, we have considered a numerical difference approximation for solving two-dimensional Riesz space fractional convection-diffusion problem with source term over a finite domain. The convection and diffusion equation can depend on both spatial
Eyaya Fekadie Anley, Zhoushun Zheng
doaj   +1 more source

A Simple Elimination of the Thermal Convection Effect in NMR Diffusiometry Experiments

open access: yesMolecules, 2022
Thermal convection is always present when the temperature of an NMR experiment is different from the ambient one. Most often, it falsifies the value of the diffusion coefficient determined by NMR diffusiometry using a PGSE NMR experiment.
Dávid Nyul   +3 more
doaj   +1 more source

On the convergence rate of finite difference methods for degenerate convection-diffusion equations in several space dimensions [PDF]

open access: yes, 2015
We analyze upwind difference methods for strongly degenerate convection-diffusion equations in several spatial dimensions. We prove that the local $L^1$-error between the exact and numerical solutions is $\mathcal{O}(\Delta x^{2/(19+d)})$, where $d$ is ...
Karlsen, Kenneth Hvistendahl   +2 more
core   +2 more sources

Dynamics of EHD Laminar Plumes: scaling analysis and integral model [PDF]

open access: yes, 2000
In this paper electrohydrodynamic (EHD) plumes are examined in the region far from the injecting electrode and the collector plate, for both two-dimensional and axisymmetric geometries.
Atten, Piere   +3 more
core   +1 more source

Concentration Distribution of Chloride Ion under the Influence of the Convection-Diffusion Coupling

open access: yesAdvances in Materials Science and Engineering, 2017
The transfer process of chloride ion under the action of the convection-diffusion coupling was analyzed in order to predict the corrosion of reinforcement and the durability of structure more accurately.
Q. L. Zhao, Y. Z. Zhang
doaj   +1 more source

Entropy Solution Theory for Fractional Degenerate Convection-Diffusion Equations [PDF]

open access: yes, 2010
We study a class of degenerate convection diffusion equations with a fractional nonlinear diffusion term. These equations are natural generalizations of anomalous diffusion equations, fractional conservations laws, local convection diffusion equations ...
Alibaud   +38 more
core   +2 more sources

G-jitter induced magnetohydrodynamics flow of nanofluid with constant convective thermal and solutal boundary conditions. [PDF]

open access: yesPLoS ONE, 2015
Taking into account the effect of constant convective thermal and mass boundary conditions, we present numerical solution of the 2-D laminar g-jitter mixed convective boundary layer flow of water-based nanofluids.
Mohammed J Uddin   +2 more
doaj   +1 more source

Diffusion and convection of gaseous and fine particulate from a chimney [PDF]

open access: yes, 2006
Particle dispersion from a high chimney is considered and an expression for the subsequent concentration of the particulate deposited on the ground is derived.
Mackay, Cameron   +2 more
core   +1 more source

Entropy Schemes for One-Dimensional Convection-Diffusion Equations

open access: yesComplexity, 2020
In this paper, we extend the entropy scheme for hyperbolic conservation laws to one-dimensional convection-diffusion equation. The operator splitting method is used to solve the convection-diffusion equation that is divided into conservation and ...
Rongsan Chen
doaj   +1 more source

Application of C-Bézier and H-Bézier basis functions to numerical solution of convection-diffusion equations

open access: yesBoundary Value Problems, 2022
Convection-diffusion equation is widely used to describe many engineering and physical problems. The finite element method is one of the most common tools for computing numerical solution. In 2003, Wang et al.
Lanyin Sun, Fangming Su
doaj   +1 more source

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