Adaptive multigrid solution of the 2D-Euler equations on an unstructured grid

2000 ◽  
Vol 144 (1-2) ◽  
pp. 43-56 ◽  
Author(s):  
Z. Q. Zhu ◽  
P. Wang ◽  
X. B. Lu
Keyword(s):  
Euler Equations ◽  
Unstructured Grid ◽  
2D Euler Equations

A New Agglomeration Method for Isotropic Unstructured Grids

2012 ◽  
Vol 241-244 ◽  
pp. 2957-2961
Author(s):  
Zong Zhe Li ◽  
Zheng Hua Wang ◽  
Wei Cao ◽  
Lu Yao
Keyword(s):  
Aspect Ratio ◽  
Euler Equations ◽  
Multigrid Method ◽  
Unstructured Grid ◽  
Convergence Rates ◽  
Unstructured Grids ◽  
Common Vertex ◽  
Finite Volume Scheme ◽  
High Quality ◽  
Coarse Grids

A robust aspect ratio based agglomeration algorithm to generate high quality coarse grids for unstructured grid is proposed in this paper. The algorithm focuses on multigrid techniques for the numerical solution of Euler equations, which conform to cell-centered finite volume scheme, combines isotropic vertex-based agglomeration to yield large increases in convergence rates. Aspect ratio is used as fusing weight to capture the degree of cell convexity and give an indication of cell quality, agglomerating isotropic cells sharing a common vertex. Consequently, we conduct agglomeration multigrid method to solve Euler equations on 2D isotropic unstructured grid, and compare the results with MGridGen

scholarly journals Adaptive multiresolution or adaptive mesh refinement? A case study for 2D Euler equations

2009 ◽  
Vol 29 ◽  
pp. 28-42 ◽  
Author(s):  
Ralf Deiterding ◽  
Margarete O. Domingues ◽  
Sônia M. Gomes ◽  
Olivier Roussel ◽  
Kai Schneider
Keyword(s):  
Euler Equations ◽  
Adaptive Mesh Refinement ◽  
Mesh Refinement ◽  
Adaptive Mesh ◽  
2D Euler Equations
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