Results 41 to 50 of about 136,590 (291)

Space–Time Radial Basis Function–Based Meshless Approach for Solving Convection–Diffusion Equations

open access: yesMathematics, 2020
This article proposes a space–time meshless approach based on the transient radial polynomial series function (TRPSF) for solving convection–diffusion equations.
Cheng-Yu Ku, Jing-En Xiao, Chih-Yu Liu
doaj   +1 more source

Efficient solver for a special class of convection-diffusion problems

open access: yes, 2019
We describe an exact and highly efficient numerical algorithm for solving a special but important class of convection-diffusion equations. These equations occur in many problems in physics, chemistry, or biology, and they are usually hard to treat due to
Enderlein, Jörg   +3 more
core   +1 more source

Two-dimensional convection—diffusion problem solved using method of localized particular solutions

open access: yesMATEC Web of Conferences, 2017
A meshless local method of approximated particular solutions (LMAPS) is used to analyze problem described by the convection-diffusion equation. The method solves the steady convection-diffusion equation with reaction term.
Mužík Juraj, Holičková Martina
doaj   +1 more source

Higher-Order Compact Finite Difference for Certain PDEs in Arbitrary Dimensions

open access: yesJournal of Function Spaces, 2020
In this paper, we first present the expression of a model of a fourth-order compact finite difference (CFD) scheme for the convection diffusion equation with variable convection coefficient.
Yan Gao, Songlin Liu
doaj   +1 more source

VAGO method for the solution of elliptic second-order boundary value problems [PDF]

open access: yes, 2010
Mathematical physics problems are often formulated using differential oprators of vector analysis - invariant operators of first order, namely, divergence, gradient and rotor operators.
Vabishchevich, Nikolay P.   +1 more
core   +4 more sources

A computational approach for fractional convection-diffusion equation via integral transforms

open access: yesAin Shams Engineering Journal, 2018
In this paper, two efficient analytic techniques namely the homotopy analysis transform method (HATM) and homotopy perturbation Sumudu transform method (HPSTM) are implemented to give a series solution of fractional convection-diffusion equation which ...
Jagdev Singh, Ram Swroop, Devendra Kumar
doaj   +1 more source

On the uniqueness of linear convection–diffusion equations with integral boundary conditions

open access: yesComptes Rendus. Mathématique, 2023
We investigate a class of convection–diffusion equations in an expanding domain involving a parameter, where we consider integral boundary conditions that depend non-locally on unknown solutions.
Lee, Chiun-Chang   +2 more
doaj   +1 more source

Implicit-Explicit Runge-Kutta schemes for hyperbolic systems and kinetic equations in the diffusion limit

open access: yes, 2011
We consider Implicit-Explicit (IMEX) Runge-Kutta (R-K) schemes for hyperbolic systems with stiff relaxation in the so-called diffusion limit. In such regime the system relaxes towards a convection-diffusion equation.
Boscarino, S., Pareschi, L., Russo, G.
core   +1 more source

Innovative Processing of Compacted Waste Aluminum Alloy Powders via Controlled Remelting and Solidification

open access: yesAdvanced Engineering Materials, EarlyView.
This study demonstrates an efficient recycling route for out‐of‐spec AlSi10Mg atomized powders through compaction and arc remelting followed by suction casting. By correlating compaction load, cooling rate, and resulting microstructure, we show that intermediate pressures (50–80 kN) and rapid cooling refine dendrites, reduce porosity, and enhance ...
Mila Christy de Oliveira   +4 more
wiley   +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

Home - About - Disclaimer - Privacy