A log-barrier method for mesh quality improvement and untangling

SP Sastry, SM Shontz, SA Vavasis - Engineering with Computers, 2014 - Springer
The presence of a few inverted or poor-quality mesh elements can negatively affect the
stability, convergence and efficiency of a finite element solver and the accuracy of the …

A numerical investigation on the interplay amongst geometry, meshes, and linear algebra in the finite element solution of elliptic PDEs

J Kim, SP Sastry, SM Shontz - Engineering with Computers, 2012 - Springer
In this paper, we study the effect of the choice of mesh quality metric, preconditioner, and
sparse linear solver on the numerical solution of elliptic partial differential equations (PDEs) …

[BUKU][B] Optimization-based meshing techniques for mesh quality improvement and deformation

J Kim - 2012 - search.proquest.com
High quality meshes are important for the accuracy, stability, and efficiency of numerical
techniques in computational simulations involving partial differential equations (PDEs) …

Correlation Between Mesh Geometry and Stiffness Matrix Conditioning for Nonlocal Diffusion Models

J Kim - East Asian Journal on Applied Mathematics, 2014 - cambridge.org
Nonlocal diffusion models involve integral equations that account for nonlocal interactions
and do not explicitly employ differential operators in the space variables. Due to the …

[BUKU][B] Dynamic meshing techniques for quality improvement, untangling, and war**

SP Sastry - 2012 - search.proquest.com
In order to numerically solve partial differential equations (PDEs) on physical domains using
finite element (FE) techniques, discretizations of the equations and the domains are …