Results 21 to 30 of about 1,278,046 (281)

A Comparison of Finite Difference and Finite Volume Methods with Numerical Simulations: Burgers Equation Model

open access: yesComplexity, 2022
In this paper, we present an intensive investigation of the finite volume method (FVM) compared to the finite difference methods (FDMs). In order to show the main difference in the way of approaching the solution, we take the Burgers equation and the ...
Ali Hasan Ali   +5 more
doaj   +1 more source

Finite difference and finite element methods for partial differential equations on fractals

open access: yesRevista Integración, 2022
In this paper, we present numerical procedures to compute solutions of partial differential equations posed on fractals. In particular, we consider the strong form of the equation using standard graph Laplacian matrices and also weak forms of the ...
Luis F. Contreras H., Juan Galvis
doaj  

Weighted Average Finite Difference Methods for Fractional Reaction-Subdiffusion Equation

open access: yesWalailak Journal of Science and Technology, 2013
In this article, a numerical study for fractional reaction-subdiffusion equations is introduced using a class of finite difference methods. These methods are extensions of the weighted average methods for ordinary (non-fractional) reaction-subdiffusion ...
Nasser Hassen SWEILAM   +2 more
doaj   +1 more source

A unified approach to Mimetic Finite Difference, Hybrid Finite Volume and Mixed Finite Volume methods [PDF]

open access: yes, 2008
We investigate the connections between several recent methods for the discretization of anisotropic heterogeneous diffusion operators on general grids.
Eymard R.   +4 more
core   +6 more sources

Numerical Treatment of Allen’s Equation Using Semi Implicit Finite Difference Methods

open access: yesEurasian Journal of Science and Engineering, 2022
This paper aims to propose the semi implicit finite difference method for discretizing Cahn-Allen equation. The stability and convergence analysis are proved.
Younis A. Sabawi   +2 more
doaj   +1 more source

Stabilized finite difference methods for the fully dynamic biot's problem

open access: yesMathematical Modelling and Analysis, 2013
This paper deals with the stabilization of the poroelasticity system, in the incompressible fully dynamic case. The stabilization term is a perturbation of the equilibrium equation that allows us to use central difference schemes to approximate the first
Natalia Boal   +3 more
doaj   +1 more source

Finite-Difference Lattice Boltzmann Methods for binary fluids

open access: yes, 2005
We investigate two-fluid BGK kinetic methods for binary fluids. The developed theory works for asymmetric as well as symmetric systems. For symmetric systems it recovers Sirovich's theory and is summarized in models A and B.
Aiguo Xu   +8 more
core   +1 more source

Heat capacity estimators for random series path-integral methods by finite-difference schemes [PDF]

open access: yes, 2003
Previous heat capacity estimators used in path integral simulations either have large variances that grow to infinity with the number of path variables or require the evaluation of first and second order derivatives of the potential. In the present paper,
Doll, J. D.   +3 more
core   +4 more sources

Application of finite-difference methods to parameter identification of agroecological models

open access: yesLietuvos Matematikos Rinkinys, 2001
A typical parameter identification problem arisen in agroecological modeling is described and a finite difference method to solve an appropriate inverse problem is proposed.
Natalija Juščenko, Vitalijus Denisov
doaj   +3 more sources

Frequency‐dependent finite‐difference time‐domain method based on iterated Crank–Nicolson scheme

open access: yesElectronics Letters, 2023
The finite‐difference time‐domain (FDTD) method based on the iterated Crank–Nicolson (ICN) scheme is extended to a frequency‐dependent version. The Drude model is used to express a metal dispersion, which is incorporated into the iterated Crank–Nicolson ...
Jun Shibayama   +3 more
doaj   +1 more source

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