14th International Meshing Roundtable
San Diego, CA, USA
September 11-14, 2005
Scientific Computation Research Center, Rensselaer Polytechnic Institute, Troy, NY 12180.
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Realization of the full benefits of variable p-version finite elements
requires the careful construction of prismatic elements in thin sections.
This paper presents a procedure to automatically isolate the thin sections
using the points on an approximate medial surface computed by an
octree-based algorithm. Using the pairs of triangles associated with medial
surface (MS) points, in conjunction with adjacency, classification and distance
information, sets of surface triangles that are on opposite face
patches in thin sections are identified. Mesh modifications are then executed
to match the surface triangulations on the opposite face patches such
that prismatic elements can be generated without diagonal edges through
the thickness directions.
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