An efficient nodal integration with quadratic exactness for three-dimensional meshfree Galerkin methods

2016 ◽  
Vol 70 ◽  
pp. 99-113 ◽  
Author(s):  
Bingbing Wang ◽  
Qinglin Duan ◽  
Yulong Shao ◽  
Xikui Li ◽  
Dixiong Yang ◽  
...  
2003 ◽  
Vol 13 (10) ◽  
pp. 1413-1436 ◽  
Author(s):  
D. Schötzau ◽  
C. Schwab ◽  
A. Toselli

We consider stabilized mixed hp-discontinuous Galerkin methods for the discretization of the Stokes problem in three-dimensional polyhedral domains. The methods are stabilized with a term penalizing the pressure jumps. For this approach it is shown that ℚk-ℚk and ℚk-ℚk-1 elements satisfy a generalized inf–sup condition on geometric edge and boundary layer meshes that are refined anisotropically and non quasi-uniformly towards faces, edges, and corners. The discrete inf–sup constant is proven to be independent of the aspect ratios of the anisotropic elements and to decrease as k-1/2 with the approximation order. We also show that the generalized inf–sup condition leads to a global stability result in a suitable energy norm.


2014 ◽  
Vol 54 (2) ◽  
pp. 353-368 ◽  
Author(s):  
Qinglin Duan ◽  
Bingbing Wang ◽  
Xin Gao ◽  
Xikui Li

2020 ◽  
Vol 121 (10) ◽  
pp. 2174-2205 ◽  
Author(s):  
R. Silva‐Valenzuela ◽  
A. Ortiz‐Bernardin ◽  
N. Sukumar ◽  
E. Artioli ◽  
N. Hitschfeld‐Kahler

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