Results 1 to 10 of about 9,086 (147)

Method of approximations for the convection-dominated anomalous diffusion equation in a rectangular plate using high-resolution compact discretization

open access: yesMethodsX, 2022
The present method describes the high-resolution compact discretization method for the numerical solution of the nonlinear fractal convection-diffusion model on a rectangular plate by employing the Hausdorff distance metric.
Navnit Jha, Shikha Verma
doaj   +1 more source

Novel Numerical Method Based on the Analog Equation Method for a Class of Anisotropic Convection-Diffusion Problems

open access: yesFrontiers in Physics, 2022
In this work, a CMFS method based on the analogy equation method, the radial basis function and the method of fundamental solutions for linear and nonlinear convection-diffusion equations in anisotropic materials is presented.
L Zhang   +8 more
doaj   +1 more source

New traveling wave solutions of a nonlinear diffusion–convection equation by using standard tanh method

open access: yesTikrit Journal of Pure Science, 2023
Exact solutions of traveling wave are acquired by employ a relatively new technique which is called standard tanh method for a nonlinear diffusion–convection equation.
Seham I. Aziz   +3 more
doaj   +1 more source

Metastability for nonlinear convection–diffusion equations [PDF]

open access: yesNonlinear Differential Equations and Applications NoDEA, 2017
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Folino, Raffaele   +3 more
openaire   +1 more source

Lagrangian for the convection–diffusion equation [PDF]

open access: yesMathematical Methods in the Applied Sciences, 2012
Using the asymmetric fractional calculus of variations, we derive a fractional Lagrangian variational formulation of the convection–diffusion equation in the special case of constant coefficients. Copyright © 2012 John Wiley & Sons, Ltd.
Cresson, Jacky   +2 more
openaire   +4 more sources

Exact traveling wave solutions of fast reaction–diffusion–convectionequations based on the Lambert function W

open access: yesPartial Differential Equations in Applied Mathematics, 2020
A particular function defined in terms of the Lambert function W is shown to serve as the basis for exact traveling wave solutions to several reaction–diffusion–convection​ (RDC) equations involving rational, non-linear diffusion terms. These represent a
Brian Wesley Williams
doaj   +1 more source

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

Matrix-equation-based strategies for convection–diffusion equations [PDF]

open access: yesBIT Numerical Mathematics, 2015
We are interested in the numerical solution of nonsymmetric linear systems arising from the discretization of convection-diffusion partial differential equations with separable coefficients and dominant convection. Preconditioners based on the matrix equation formulation of the problem are proposed, which naturally approximate the original discretized ...
PALITTA, DAVIDE, SIMONCINI, VALERIA
openaire   +6 more sources

A nonlocal convection–diffusion equation

open access: yesJournal of Functional Analysis, 2007
The authors study a nonlocal equation of the form \(u_t = J*u -u + G*(f(u)) - f(u)\) in \((0,\infty)\times\mathbb R^d\) subject to the initial condition \(u(x,0) = u_0(x)\), \(x \in\mathbb R^d\), with \(J\) radially symmetric and \(G\) not necessary symmetric. The nonlinearity \(f\) is assumed to be nondecreasing with \(f(0) = 0\) and locally Lipschitz
Ignat, L.I., Rossi, J.D.
openaire   +3 more sources

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

Home - About - Disclaimer - Privacy