unstructuredgrid
An unstructured grid, or unstructured mesh, is a discretization in which nodes are placed irregularly in space and elements connect these nodes in an arbitrary topology rather than a regular lattice. In two dimensions, common elements are triangles and quadrilaterals; in three dimensions, tetrahedra, hexahedra (cubes), prisms, pyramids, or general polyhedra may be used. This flexibility makes unstructured grids well suited to modeling complex geometries and enabling local refinement where needed.
Data organization typically consists of a list of points (nodes) and a list of cells (elements). Each
Unstructured grids are usually generated by mesh generation algorithms that create a conforming mesh to a
Applications include finite element analysis, finite volume methods for fluid flow, and other numerical simulations that
In the Visualization Toolkit and related software, UnstructuredGrid denotes a data structure capable of storing arbitrary