Results 61 to 70 of about 12,853 (184)
LANDSLIDE-TYPE TSUNAMI MODELLING BASED ON THE NAVIER - STOKES EQUATIONS [PDF]
Science of Tsunami Hazards, 2016 The paper presents a unified computing technology for all stages of landslide-type tsunami. The computing technology is based on the numerical solution of the Navier – Stokes equations for multiphase flows. The method of numerical solution of the Navier –
A.S. Kozelkov +5 more
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International Journal for Computational Civil and Structural Engineering, 2018 he distinctive paper is devoted to so-called multigrid (particularly two-grid) method of structural analysis based on discrete Haar basis (one-dimensional, two-dimensional and three-dimensional problems are under consideration).
Marina L. Mozgaleva +2 more
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Труды Института системного программирования РАН, 2018 The efficiency comparison of solvers for sparse linear algebraic equations systems based on one of the fastest iterative methods, the BiCGStab method (bi-conjugate gradient method with stabilization), and the FGMRES method (flexible method of generalized
I. K. Marchevsky, V. V. Puzikova
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Multilevel preconditioners for embedded enriched partition of unity approximations
Advanced Modeling and Simulation in Engineering Sciences, 2018 In this paper we are concerned with the non-invasive embedding of enriched partition of unity approximations in classical finite element simulations and the efficient solution of the resulting linear systems.
Marc Alexander Schweitzer +1 more
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An introduction to algebraic multigrid [PDF]
Computing in Science & Engineering, 2006 Algebraic multigrid (AMG) solves linear systems based on multigrid principles, but in a way that only depends on the coefficients in the underlying matrix. The author begins with a basic introduction to AMG methods, and then describes some more recent advances and theoretical ...
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ComputersThe structure and memory organization of graphics processor units (GPUs) manufactured by NVIDIA and the use of CUDA programming technology to solve computational fluid dynamics (CFD) problems is reviewed and discussed.
Redha Benhadj-Djilali +2 more
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Algebraic Multigrid for Meshfree Methods
, 2020 This thesis deals with the development of a new Algebraic Multigrid method (AMG) for the solution of linear systems arising from Generalized Finite Difference Methods (GFDM). In particular, we consider the Finite Pointset Method, which is based on GFDM.
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COARSE SPACES BY ALGEBRAIC MULTIGRID: MULTIGRID CONVERGENCE AND UPSCALING ERROR ESTIMATES
Advances in Adaptive Data Analysis, 2011 We give an overview of a number of algebraic multigrid methods targeting finite element discretization problems. The focus is on the properties of the constructed hierarchy of coarse spaces that guarantee (two-grid) convergence. In particular, a necessary condition known as "weak approximation property," and a sufficient one, referred to as "strong ...
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A review of algebraic multigrid
Journal of Computational and Applied Mathematics, 2001 This paper (which seems to be a condensed version of the paper by the same author in the proceedings ``Multigrid'', Academic Press, N.Y., edited by U.\ Trottenberg et al. (2001; Zbl 0976.65106)) discusses and illustrates possibilities of algebraic multigrid algorithms for the solution of, e.g., heat conduction problems (with highly varying coefficients)
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Algebraic Multigrid for Moderate Order Finite Elements
SIAM Journal on Scientific Computing, 2014 We investigate the use of algebraic multigrid (AMG) methods for the solution of large sparse linear systems arising from the discretization of scalar elliptic partial differential equations with Lagrangian finite elements of order at most 4. The resulting system matrices do not have the M-matrix property that is required by standard analyses of ...
Napov, Artem, Notay, Yvan
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