Strong Coupled Agglomeration Multigrid for Navier-Stokes Equations on Unstructured Grids

DOI

10.2991/iccasm.2012.122How to use a DOI?

Keywords

Strong coupled agglomeration, Unstructured grids, Cell-centered, Multigrid

Abstract

This paper focused on a series of agglomeration multigrid techniques for the numerical solution of the 2D/3D Reynolds Averaged Navier-Stokes equations on cell-centered unstructured grids, which conform with FVM discretization scheme. We explore a new agglomeration strategy to automated generate coarse grids for multigrid methods, which can conduct to 2D/3D unstructured/hybrid grids. The algorithm based on face weighting, fuse the strongest coupled neigh-bor face to form a new cell in coarsen grid once at a time. The numerical results which conduct on NACA0012 airfoil indicate that nearly optimal computational complexity, this method also shows better complexity than the listed method owing to the better quality of the coarse grid.

Copyright

© 2012, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Zongzhe Li
AU  - Zhenghua Wang
AU  - Wei Cao
AU  - Lu Yao
PY  - 2012/08
DA  - 2012/08
TI  - Strong Coupled Agglomeration Multigrid for Navier-Stokes Equations on Unstructured Grids
BT  - Proceedings of the 2012 International Conference on Computer Application and System Modeling (ICCASM 2012)
PB  - Atlantis Press
SP  - 479
EP  - 482
SN  - 1951-6851
UR  - https://doi.org/10.2991/iccasm.2012.122
DO  - 10.2991/iccasm.2012.122
ID  - Li2012/08
ER  -