The unstructured-mesh tag has no wiki summary.
9
votes
2answers
66 views
N-dimensional Delaunay Tesselation Software Libraries
I have a set of known points/nodes irregularly spaced in N-Dimensional space (N>=2), and I would like a way to generate the Delaunay triangulation of these points, and return the corresponding ...
3
votes
2answers
104 views
First order finite volume spatial discretization of the heat equation on an unstructured triangle mesh
Consider a scalar field $u$ on an unstructured triangle mesh which is constant on each face. Let $A_i$ be the area of triangle $T_i$, $N(i)$ the set of triangles sharing an edge with $T_i$, and ...
2
votes
1answer
60 views
Location of Unknowns in Unstructured Mesh
I am currently learning a code which utilizes Scharfetter-Gummel discretization for unsteady drift-diffusion equations. For this scheme, a 2D unstructured triangular mesh is used, with the unknowns ...
4
votes
1answer
183 views
Grid mapping from an unstructured triangular mesh to a regular rectangular mesh
I am modeling fracture propagation using a 2-D dynamic unstructured grid. As the fracture propagates over time, the elements move accordingly. For a given time step, I would like to interpolate the ...
7
votes
3answers
513 views
Finding which triangles points are in
Suppose I have a 2D mesh consisting of nonoverlapping triangles $\{T_k\}_{k=1}^N$, and a set of points $\{p_i\}_{i=1}^M \subset \cup_{k=1}^N T_K$. What is the best way to determine which triangle each ...
5
votes
1answer
127 views
Largest unstructured mesh problem solved till date
What is the largest problem (in DOF) that has been solved till date using a fully unstructured mesh. I know about PFLOTRAN but I am not sure if it is the largest. If someone can point to relevant ...
8
votes
2answers
365 views
How to interpolate multipoint data to the cell centres of an unstructured mesh?
I have sets of multipoint field data, each point data set relates to a single cell of an unstructured mesh. The goal is to interpolate the data to the cell centre, directly or indirectly, in the most ...
