Results 21 to 30 of about 487,842 (295)

Large-Scale Cluster Parallel Strategy for Regularized Lattice Boltzmann Method with Sub-Grid Scale Model in Large Eddy Simulation

open access: yesApplied Sciences, 2023
As an improved method of the lattice Boltzmann method (LBM), the regularized lattice Boltzmann method (RLBM) has been widely used to simulate fluid flow. For solving high Reynolds number problems, large eddy simulation (LES) and RLBM can be combined. The
Zhixiang Liu   +4 more
doaj   +1 more source

Constraint interface preconditioning for topology optimization problems [PDF]

open access: yes, 2015
The discretization of constrained nonlinear optimization problems arising in the field of topology optimization yields algebraic systems which are challenging to solve in practice, due to pathological ill-conditioning, strong nonlinearity and size.
Kocvara, Michal   +2 more
core   +2 more sources

Time integration and the Trefftz Method Part I - First-order and parabolic problems

open access: yesComputer Assisted Methods in Engineering and Science, 2023
The finite element method is applied in the time domain to establish formulations for the integration of first-order and parabolic (transient) problems. The modal decomposition concept is applied using two distinct approaches.
João A. Teixeira de Freitas
doaj  

Orlicz estimates for parabolic Schrödinger operators with non-negative potentials on nilpotent Lie groups

open access: yesAIMS Mathematics, 2023
In this paper, we study the Orlicz estimates for the parabolic Schrödinger operator $ L = {\partial _t} - {\Delta _X} + V, $ where the nonnegative potential $ V $ belongs to a reverse Hölder class on nilpotent Lie groups $ {\Bbb G} $ and ...
Kelei Zhang
doaj   +1 more source

A domain decomposition matrix-free method for global linear stability [PDF]

open access: yes, 2012
This work is dedicated to the presentation of a matrix-free method for global linear stability analysis in geometries composed of multi-connected rectangular subdomains.
ALIZARD, Frédéric   +2 more
core   +6 more sources

The Application of Domain Decomposition to Time-Domain Computations of Nonlinear Water Waves with a Panel Method [PDF]

open access: yes, 1996
In this paper an iterative domain decomposition method for the solution of Laplace's equation is described and its effectiveness in time-domain computations of nonlinear water waves with a panel method is investigated.
Haas, P.C.A. de, Zandbergen, P.J.
core   +2 more sources

Accelerated Restricted Additive Schwarz method for asynchronous processing

open access: yesResults in Applied Mathematics
This paper examines the parallel efficiency of both synchronous and asynchronous domain decomposition methods (DDMs), when solving algebraic systems derived from the discretization of partial differential equations (PDEs).
A. Ben bouzid   +3 more
doaj   +1 more source

High‐performance computing of 3D blasting wave propagation in underground rock cavern by using 4D‐LSM on TianHe‐3 prototype E class supercomputer

open access: yesDeep Underground Science and Engineering, 2022
Parallel computing assigns the computing model to different processors on different devices and implements it simultaneously. Accordingly, it has broad applications in the numerical simulation of geotechnical engineering and underground engineering, of ...
Meng Fu, Gaofeng Zhao
doaj   +1 more source

A Pressure-Stabilized Lagrange-Galerkin Method in a Parallel Domain Decomposition System

open access: yesAbstract and Applied Analysis, 2013
A pressure-stabilized Lagrange-Galerkin method is implemented in a parallel domain decomposition system in this work, and the new stabilization strategy is proved to be effective for large Reynolds number and Rayleigh number simulations.
Qinghe Yao, Qingyong Zhu
doaj   +1 more source

An Improved Traffic Matrix Decomposition Method with Frequency-Domain Regularization

open access: yes, 2012
We propose a novel network traffic matrix decomposition method named Stable Principal Component Pursuit with Frequency-Domain Regularization (SPCP-FDR), which improves the Stable Principal Component Pursuit (SPCP) method by using a frequency-domain noise
Hu, Kai, Wang, Zhe, Yin, Baolin
core   +1 more source

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