Results 61 to 70 of about 64,290 (211)

The analysis of general two-dimensional PEC structures using a modified CPFDTD algorithm [PDF]

open access: yes, 1996
The use of the contour path finite difference time domain (CPFDTD) method with locally distorted contours has been shown to give accurate results for curved metal structures.
Schneider, JB, Railton, CJ, Craddock, IJ
core   +1 more source

Nonuniform Finite Difference Scheme for the Three-Dimensional Time-Fractional Black–Scholes Equation

open access: yesJournal of Function Spaces, 2021
In this study, we present an accurate and efficient nonuniform finite difference method for the three-dimensional (3D) time-fractional Black–Scholes (BS) equation.
Sangkwon Kim   +5 more
doaj   +1 more source

On stochastic finite difference schemes [PDF]

open access: yesStochastic Partial Differential Equations: Analysis and Computations, 2014
Finite difference schemes in the spatial variable for degenerate stochastic parabolic PDEs are investigated. Sharp results on the rate of $L_p$ and almost sure convergence of the finite difference approximations are presented and results on Richardson extrapolation are established for stochastic parabolic schemes under smoothness assumptions.
openaire   +2 more sources

A dynamically optimized finite difference scheme for Large-Eddy Simulation [PDF]

open access: yes, 2010
A low-dispersive dynamic finite difference scheme for Large-Eddy Simulation is developed. The dynamic scheme is constructed by combining Taylor series expansions on two different grid resolutions. The scheme is optimized dynamically through the real-time
Fauconnier, Dieter   +5 more
core   +1 more source

Development and -Analysis of a Single-Step Characteristics Finite Difference Scheme of Second Order in Time for Convection-Diffusion Problems

open access: yesJournal of Algorithms & Computational Technology, 2013
A new finite difference scheme based on the method of characteristics is presented for convection-diffusion problems. The scheme is of single-step and second order in time, and the matrix of the derived system of linear equations is symmetric.
Hirofumi Notsu   +2 more
doaj   +1 more source

Solving space-fractional Cauchy problem by modified finite-difference discretization scheme

open access: yesAlexandria Engineering Journal, 2020
This paper deals with the stability convergence analysis for SFCE in the sense of Riemann-Liouville derivative. A modified FDDS is developed utilizing the fractionally-shifted Grünwald formula in handling the SFCE.
Omar Abu Arqub   +3 more
doaj   +1 more source

Conservative Weighted Finite Difference Scheme for the Rosenau-RLW Equation

open access: yes四川大学学报. 自然科学版, 2017
In this paper a numerical method for an initial-boundary problem of the Rosenau-RLW equation is considered. A three-layer weighted conservative difference scheme is proposed. The scheme simulates the conservation property of the equations.
ZHANG Xi, HU Bing, HU Jin-Song
doaj  

A mimetic finite difference method using Crank-Nicolson scheme for unsteady diffusion equation

open access: yesRevista de Matemática: Teoría y Aplicaciones, 2010
n this article a new mimetic finite difference method to solve unsteady diffusion equation is presented. It uses Crank-Nicolson scheme to obtain time approximations and second order mimetic discretizations for gradient and divergence operators in space ...
Iliana A. Mannarino
doaj   +1 more source

A class of Petrov-Galerkin finite element methods for the numerical solution of the stationary convection-diffusion equation. [PDF]

open access: yes, 1996
A class of Petrov-Galerkin finite element methods is proposed for the numerical solution of the n dimensional stationary convection-diffusion equation.
Perella, A.J., Perella, Andrew James
core  

Perturbational Finite Difference Scheme of Convection-Diffusion Equation

open access: yes, 2002
The Perturbational Finite Difference (PFD) method is a kind of high-order-accurate compact difference method, But its idea is different from the normal compact method and the multi-nodes method.
Hu LM(胡利民), Gao Z(高智)
core  

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