Finite element method | Computational fluid dynamics

Spatial twist continuum

In finite element analysis, the spatial twist continuum (STC) is a dual representation of a hexahedral mesh that defines the global connectivity constraint. Generation of an STC can simplify the automated generation of a mesh. The method was published in 1993 by a group led by Peter Murdoch. The name is derived from the description of the surfaces that define the connectivity of the hexahedral elements. The surfaces are arranged in the three principal dimensions such that they form orthogonal intersections that coincide with the centroid of the hexahedral element. They are arranged predominately coplanar to each other in their respective dimensions yet they can twist into the other dimensional planes through transitions. The surfaces are unbroken throughout the entire volume of the mesh hence they are continuums. (Wikipedia).

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Connectivity (graph theory) | Constraint (mathematics) | Types of mesh | Dual representation | Centroid | Orthogonality