Search Results - unstructured multigrid algorithm

Implicit LU-SGS algorithm for high-order methods on unstructured grid with p-multigrid strategy for solving the steady Navier–Stokes equations by Parsani, M., Van den Abeele, K., Lacor, C., Turkel, E.

“…–Stokes equations associated with stretched meshes. The LU-SGS algorithm is then used as a smoother for a p-multigrid approach…”
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A new method based on SOM network to generate coarse meshes for overlapping unstructured multigrid algorithm by Lu, Hong-qiang, Wu, Yi-zhao, Chen, Song-can

“…A new method to generate coarse meshes for overlapping unstructured multigrid algorithm based on self-organizing map (SOM…”
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Implicit/Multigrid Algorithms for Incompressible Turbulent Flows on Unstructured Grids by Anderson, W.Kyle, Rausch, Russ D., Bonhaus, Daryl L.

“…An implicit code for computing inviscid and viscous incompressible flows on unstructured grids is described…”
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Towards robust, fast solutions of elliptic equations on complex domains through hybrid high‐order discretizations and non‐nested multigrid methods by Di Pietro, Daniele A., Hülsemann, Frank, Matalon, Pierre, Mycek, Paul, Rüde, Ulrich, Ruiz, Daniel

“… To address this problem, we propose in this work a geometric multigrid algorithm for unstructured non‐nested meshes. The non…”
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A comparison of element agglomeration algorithms for unstructured geometric multigrid by Dargaville, S, Buchan, A G, Smedley-Stevenson, R P, Smith, P N, Pain, C C

“…This paper compares the performance of seven different element agglomeration algorithms on unstructured triangular/tetrahedral meshes when used as part of a geometric multigrid…”
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An aspect ratio agglomeration multigrid for unstructured grids by Li, Zongzhe, Wang, Zhenghua, Cao, Wei, Yao, Lu

“…SUMMARY A robust aspect ratio‐based agglomeration algorithm to generate high quality of coarse grids for unstructured and hybrid grids is proposed in this paper…”
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Multigrid algorithms for high-order discontinuous Galerkin discretizations of the compressible Navier–Stokes equations by Shahbazi, Khosro, Mavriplis, Dimitri J., Burgess, Nicholas K.

“…–Stokes equations on unstructured meshes. The algorithms are based on coupling both p- and h-multigrid ( ph-multigrid…”
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Efficient fully-coupled solution techniques for two-phase flow in porous media: Parallel multigrid solution and large scale computations by Bastian, Peter, Helmig, Rainer

“… We employ a Newton-multigrid algorithm on unstructured meshes in two and three space dimensions…”
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Parallel multigrid solvers for 3D unstructured finite element problems in large deformation elasticity and plasticity by Adams, Mark F.

“… method itself, to apply standard multigrid algorithms to unstructured finite element problems…”
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A distributed memory unstructured gauss-seidel algorithm for multigrid smoothers by Adams, Mark F.

“…Gauss-Seidel is a popular multigrid smoother as it is provably optimal on structured grids and exhibits superior performance on unstructured grids…”
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Multiplicative and additive parallel multigrid algorithms for the acceleration of compressible flow computations on unstructured meshes by Fournier, L., Lanteri, S.

“…In this paper we examine how parallel multigrid acceleration can be used to improve the efficiency of two-dimensional compressible steady flow calculations on unstructured meshes…”
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Unstructured Geometric Multigrid in Two and Three Dimensions on Complex and Graded Meshes by Brune, Peter R., Knepley, Matthew G., Scott, L. Ridgway

“… has a complex shape or the mesh has adaptive refinement. We introduce a simplification of a general topologically motivated mesh coarsening algorithm for use in creating hierarchies of meshes for geometric unstructured multigrid methods…”
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Parallel multigrid solvers for 3D-unstructured large deformation elasticity and plasticity finite element problems by Adams, Mark, Taylor, R.L

“… We discuss a method, that uses many of the same techniques as the finite element method itself, to apply standard multigrid algorithms to unstructured finite element problems…”
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Symmetric Gauss-Seidel multigrid solution of the Euler equations on structured and unstructured grids by Caughey, David

“…The efficient symmetric Gauss-Seidel (SGS) algorithm for solving the Euler equations of inviscid, compressible flow on structured grids, developed in collaboration with Jameson of Stanford University, is extended to unstructured grids…”
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Designing Resilient Parallel Multigrid Methods on Unstructured Adaptive Meshes by Fung, Frederick

“… Prior studies of fault-tolerant multigrid methods have focused on structured grids. In this research, the challenge lies in the fact that unstructured grids…”
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Towards robust, fast solutions of elliptic equations on complex domains through HHO discretizations and non-nested multigrid methods by Di Pietro, Daniele Antonio, Hülsemann, Frank, Matalon, Pierre, Mycek, Paul, Rüde, Ulrich, Ruiz, Daniel

“… To address this problem, we propose in this work a geometric multigrid algorithm for unstructured non-nested meshes…”
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Numerical simulation of 3D fluid–structure interaction flow using an immersed object method with overlapping grids by Tai, C.H., Liew, K.M., Zhao, Y.

“…–structure interaction (FSI), which is made possible by combining it with a parallel unstructured multigrid Navier…”
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Implicit time‒accurate solutions on unstructured dynamic grids by Crumpton, P. I., Giles, M. B.

“…In this paper an unstructured multigrid algorithm is used as an iterative solution procedure for the discrete equations arising from an implicit time discretization of the unsteady Euler equations on tetrahedral grids…”
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Acceleration of a Navier–Stokes equation solver for unstructured grids using agglomeration multigrid and parallel processing by Lambropoulos, N.K., Koubogiannis, D.G., Giannakoglou, K.C.

“…–Stokes equations on unstructured grids. The agglomeration algorithm conforms with the finite-volume discretization scheme and operates independently of the algorithm used to define the concurrently treated subdomains…”
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Application of the multigrid approach for solving 3D Navier-Stokes equations on hexahedral grids using the discontinuous Galerkin method by Wolkov, A. V.

“… A hybrid multigrid algorithm involving the finite element and grid stages is used as an iterative solution method…”
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