Results 11 to 20 of about 5,201 (223)

An adaptive-smoothing multigrid method for the Navier-Stokes equations [PDF]

, 2022
S.94-100The paper presents the development and investigation of an adaptive-smoothing (AS) procedure in conjunction with a full multigrid (FMG) - full approximation storage (FAS) method.
Drikakis, D., Iliev, O., Vassileva, D.
core   +1 more source

Monolithic Multigrid Methods for Magnetohydrodynamics

SIAM Journal on Scientific Computing, 2021
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
James H. Adler, Thomas R. Benson, Eric C. Cyr, Patrick E. Farrell, Scott P. MacLachlan, Ray S. Tuminaro   +5 more
openaire   +3 more sources

Multigrid methods for improving the variational data assimilation in numerical weather prediction [PDF]

Tellus: Series A, Dynamic Meteorology and Oceanography, 2014
Two conditions are needed to solve numerical weather prediction models: initial condition and boundary condition. The initial condition has an especially important bearing on the model performance.
Youn-Hee Kang, Do Young Kwak, Kyungjeen Park   +2 more
doaj   +1 more source

Special issue on multigrid methods [PDF]

Computing and Visualization in Science, 2015
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Artem Napov, Yvan Notay, Stefan Vandewalle   +2 more
openaire   +3 more sources

Nonlinear Multigrid Implementation for the Two-Dimensional Cahn–Hilliard Equation

Mathematics, 2020
We present a nonlinear multigrid implementation for the two-dimensional Cahn−Hilliard (CH) equation and conduct detailed numerical tests to explore the performance of the multigrid method for the CH equation.
Chaeyoung Lee, Darae Jeong, Junxiang Yang, Junseok Kim   +3 more
doaj   +1 more source

An Aggregation-Based Algebraic Multigrid Method with Deflation Techniques and Modified Generic Factored Approximate Sparse Inverses

Mathematics, 2023
In this paper, we examine deflation-based algebraic multigrid methods for solving large systems of linear equations. Aggregation of the unknown terms is applied for coarsening, while deflation techniques are proposed for improving the rate of convergence.
Anastasia A. Natsiou, George A. Gravvanis, Christos K. Filelis-Papadopoulos, Konstantinos M. Giannoutakis   +3 more
doaj   +1 more source

A multigrid discretization scheme based on the shifted inverse iteration for the Steklov eigenvalue problem in inverse scattering

Open Mathematics, 2023
Numerical methods for computing Steklov eigenvalues have attracted the attention of academia for their important physical background and wide applications.
Xie Jiali, Bi Hai
doaj   +1 more source

Multigrid methods III / [PDF]

, 1991
"... papers presented at the Third European Conference on Multigrid Methods, which was held in Bonn, October 1-4, 1990.
Trottenberg, Ulrich, Hackbusch, Wolfgang(viaf)108423024, European Conference on Multigrid Methods(3 :1990)Bonn :oth   +2 more
core   +3 more sources

An extrapolation full multigrid algorithm combined with fourth-order compact scheme for convection–diffusion equations

Advances in Difference Equations, 2018
In this paper, we propose an extrapolation full multigrid (EXFMG) algorithm to solve the large linear system arising from a fourth-order compact difference discretization of two-dimensional (2D) convection diffusion equations.
Ming Li, Zhoushun Zheng, Kejia Pan
doaj   +1 more source

Combining p-multigrid and Multigrid Reduction in Time methods to obtain a scalable solver for Isogeometric Analysis

SN Applied Sciences, 2022
Article Highlights The use of a p-multigrid method significantly reduces the CPU timings for higher values of the spline degree. The Multigrid Reduction in Time method shows both strong and weak scalability up to 2048 cores.
Roel Tielen, Matthias Möller, Cornelis Vuik   +2 more
doaj   +1 more source