Results 31 to 40 of about 1,768,446 (289)

Finite Difference Schemes for MCM and AMSS

open access: yesImage Processing On Line, 2011
This article refers to algorithms based on finite difference schemes for computing mean and affine curvature evolutions of digital images, introduced by Alvarez and Morel [L. Alvarez, J.M. Morel, “Formalization and computational aspects of image analysis”
Marco Mondelli, Adina Ciomaga
doaj   +1 more source

An improved method for inhomogeneous space grid in the simulation of unsaturated flow

open access: yesShuiwen dizhi gongcheng dizhi, 2023
The Richards’ equation is widely used in the simulation of unsaturated flow and related fields. In the numerical solution process, the finite difference method can be used to carry out numerical discretization and iterative calculation. However, in order
Shuairun ZHU   +4 more
doaj   +1 more source

On numerical soliton and convergence analysis of Benjamin-Bona-Mahony-Burger equation via octic B-spline collocation

open access: yesArab Journal of Basic and Applied Sciences, 2023
In this work, we employ an octic B-spline function to construct a collocation technique for obtaining solutions to soliton on Benjamin-Bona-Mahony-Burgers (BBMB) equation.
Saumya Ranjan Jena, Archana Senapati
doaj   +1 more source

A noniterative domain decomposition method for the forward-backward heat equation [PDF]

open access: yesIranian Journal of Numerical Analysis and Optimization, 2020
A nonoverlapping domain decomposition technique applied to a finite difference method is presented for the numerical solution of the forward backward heat equation in the case of one-dimension.
S. Banei, K. Shanazari
doaj   +1 more source

cuSten — CUDA finite difference and stencil library

open access: yesSoftwareX, 2019
In this paper we present cuSten, a new library of functions to handle the implementation of 2D and batched 1D finite-difference/stencil programs in CUDA. cuSten wraps data handling, kernel calls and streaming into four easy to use functions that speed up
Andrew Gloster, Lennon Ó Náraigh
doaj   +1 more source

A 2D Moving Mesh Finite Element Analysis of Heat Transfer in Arctic Soils

open access: yesThermo, 2023
Accurate soil heat transfer models are needed to predict and adapt to a warming arctic. A numerical model to accurately predict temperatures and thaw depths in soils, both with depth and with horizontal distance from features such as cliffs, was ...
Michelle Wilber, Getu Hailu
doaj   +1 more source

Domain decomposition finite element/finite difference method for the conductivity reconstruction in a hyperbolic equation

open access: yes, 2015
We present domain decomposition finite element/finite difference method for the solution of hyperbolic equation. The domain decomposition is performed such that finite elements and finite differences are used in different subdomains of the computational ...
Beilina, L.
core   +1 more source

Generalized finite-difference schemes [PDF]

open access: yesMathematics of Computation, 1969
Finite-difference schemes for initial boundary-value problems for partial differential equations lead to systems of equations which must be solved at each time step. Other methods also lead to systems of equations. We call a method a generalized finite-difference scheme if the matrix of coefficients of the system is sparse.
Swartz, B., Wendroff, B.
openaire   +1 more source

Method to Estimate Thermal Transients in Reactors and Determine Their Parameter Sensitivities without a Forward Simulation

open access: yesEnergies, 2022
Thermal response time is an important parameter for the control of fast reactors. Modern thermal hydraulic codes allow for the modeling of transient responses and can also be used to understand the dominant factors that affect them.
Sydney A. Holdampf   +2 more
doaj   +1 more source

Conservative and non-conservative methods based on hermite weighted essentially-non-oscillatory reconstruction for Vlasov equations [PDF]

open access: yes, 2013
We introduce a WENO reconstruction based on Hermite interpolation both for semi-Lagrangian and finite difference methods. This WENO reconstruction technique allows to control spurious oscillations.
Filbet, Francis, Yang, Chang
core   +3 more sources

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