Results 31 to 40 of about 24,142 (134)

Numerical Simulation of One-Phase Flow to Multi-Stage Hydraulically Fractured Horizontal Well [PDF]

open access: yesУчёные записки Казанского университета: Серия Физико-математические науки, 2016
This paper presents a method of numerical simulation of one-phase flow near multi-stage fractured horizontal well in oil reservoir. Differential models for flows within reservoir and within fractures are formulated separately on the basis of Darcy's law.
M.R. Khamidullin
doaj  

A preconditioned AOR iterative scheme for systems of linear equations with L-matrics

open access: yesOpen Mathematics, 2019
In this paper we investigate theoretically and numerically the new preconditioned method to accelerate over-relaxation (AOR) and succesive over-relaxation (SOR) schemes, which are used to the large sparse linear systems.
Wang Hongjuan
doaj   +1 more source

One-Parameter Controlled Non-Dissipative Unconditionally Stable Explicit Structure-Dependent Integration Methods with No Overshoot

open access: yesApplied Sciences, 2021
Although many families of integration methods have been successfully developed with desired numerical properties, such as second order accuracy, unconditional stability and numerical dissipation, they are generally implicit methods.
Veerarajan Selvakumar, Shuenn-Yih Chang
doaj   +1 more source

New types of membrane-rod and membrane-pneumatic structures and improved methods for their calculation

open access: yesВестник Дагестанского государственного технического университета: Технические науки, 2023
Objective. The purpose of this study was to create new pre-fabricated membrane-rod structures and non-linear methods for their calculation.Method. A stepwise method with an iterative numerical Euler-Cauchy procedure of the third order of accuracy was ...
A. Yu. Kim, S. V. Polnikov, M. F. Amoyan
doaj   +1 more source

Convergence and Efficiency Analysis of the Gauss-Seidel Method in Solving Linear Equation Systems: Implementation on Maple

open access: yesJurnal Theorems (The Original Research of Mathematics)
Iterative methods provide an efficient approach for solving large-scale systems of linear equations. This study aims to analyze the convergence and efficiency of the Gauss-Seidel method in solving linear systems through Maple-based implementation ...
Nahdia Tuzzaro   +2 more
doaj   +1 more source

Krylov Subspace Solvers and Preconditioners

open access: yesESAIM: Proceedings and Surveys, 2018
In these lecture notes an introduction to Krylov subspace solvers and preconditioners is presented. After a discretization of partial differential equations large, sparse systems of linear equations have to be solved.
Vuik C.
doaj   +1 more source

A proposal for an instructional methodological class on iterative numerical methods for Systems of Linear Equations

open access: yesGamification and Augmented Reality
Introduction: The methodological work aimed to enhance teachers' pedagogical preparation to optimize the teaching-learning process, focusing on improving Curriculum E of Computer Science, specifically in the Numerical Mathematics course.  Methods: An instructional methodological class was designed based on previous research conducted at the Faculty of ...
Damian Valdés Santiago   +1 more
openaire   +1 more source

Parallel multigrid method for solving inverse problems

open access: yesMethodsX, 2022
We considered in this work the linear operator equation and used the Landweber iterative method as an iterative solver. After that, we used the multigrid method as an optimization method for obtaining an approximation solution with a highly accurate and ...
H.K. Al-Mahdawi   +5 more
doaj   +1 more source

Two New Efficient Iterative Regularization Methods for Image Restoration Problems

open access: yesAbstract and Applied Analysis, 2013
Iterative regularization methods are efficient regularization tools for image restoration problems. The IDR(s) and LSMR methods are state-of-the-arts iterative methods for solving large linear systems. Recently, they have attracted considerable attention.
Chao Zhao   +3 more
doaj   +1 more source

OpenFOAM iterative methods efficiency analysis for linear systems solving

open access: yesТруды Института системного программирования РАН, 2018
Significant part of the computational work in numerical simulations of technical systems, physical phenomena and technological processes is solving of linear algebraic equations systems arising from the discretization of the corresponding differential or
I. K. Marchevsky, V. V. Puzikova
doaj  

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