Results 31 to 40 of about 1,759,067 (289)
Frontiers in Earth Science, 2022 The large computational memory requirement is an important issue in 3D large-scale wave modeling, especially for GPU calculation. Based on the observation that wave propagation velocity tends to gradually increase with depth, we propose a 3D trapezoid ...
Bangyu Wu +5 more
doaj +1 more source
Finite Difference Schemes for MCM and AMSS
Image 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
Shuiwen 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
Arab 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]
Iranian 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
Simulation of Metasurfaces in Finite Difference Techniques
, 2016 We introduce a rigorous and simple method for analyzing metasurfaces, modeled as zero-thickness electromagnetic sheets, in Finite Difference (FD) techniques.
Achouri, Karim +2 more
core +1 more source
cuSten — CUDA finite difference and stencil library
SoftwareX, 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
Thermo, 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
Generalized finite-difference schemes [PDF]
Mathematics 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
Efficient interface conditions for the finite difference beam propagation method [PDF]
, 1992 It is shown that by adapting the refractive indexes in the vicinity of interfaces, the 2-D beam propagation method based on the finite-difference (FDBPM) scheme can be made much more effective. This holds especially for TM modes propagating in structures
Hoekstra, H.J.W.M. +2 more
core +3 more sources