Results 31 to 40 of about 281,967 (214)

Finite difference method on 1D and 2D Riemann problems for Euler equations with different state of equations [PDF]

open access: yes, 2022
We discussed the finite difference WENO5 scheme on the 1D and 2D compressible Euler equations. The 1D Chaplygin gas system with a constant external force led to two kinds of solutions: contact discontinuity and delta shock.
Jin, Ling
core  

An Investigation of Natural Convection Heat Transfer in a Square Enclosure Filled with Nanofluid [PDF]

open access: yesEngineering and Technology Journal, 2011
In this research, numerical solution of natural convection heat transfer of nanofluids in two-dimensional square enclosures is obtained for different values of Rayleigh numbers and volume fraction of nanofluids.
Ayad M. Salman
doaj   +1 more source

Trapezoid-Grid Finite-Difference Time-Domain Method for 3D Seismic Wavefield Modeling Using CPML Absorbing Boundary Condition

open access: yesFrontiers 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

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

A Novel Piecewise Linear Recursive Convolution Approach for Dispersive Media Using the Finite-Difference Time-Domain Method [PDF]

open access: yes, 2014
Two novel methods for implementing recursively the convolution betweenthe electric field and a time dependent electric susceptibility function inthe finite-difference time domain (FDTD) method are presented.
Giannakis, Iraklis   +2 more
core   +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

Efficient parallel computing with a compact finite difference scheme

open access: yes, 2012
This paper proposes an efficient parallel computing approach based on a high-order accurate compact finite difference scheme in conjunction with a conventional domain decomposition method and MPI libraries.
Kim, J.W., Sandberg, R.D.
core   +1 more source

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