Conformal Refinement of All-Hexahedral Element Meshes Based on Multiple Twist Plane Insertion
Harris, Nathan J., Steven E. Benzley and Steven J. Owen
Proceedings, 13th International Meshing Roundtable, Williamsburg, VA, Sandia National Laboratories, SAND #2004-3765C, pp.157-168, September 19-22 2004
13th International Meshing Roundtable
Willimasburg, Virginia, USA
September 19-22, 2004
Nathan J. Harris and Steven E. Benzley
Brigham Young University, Provo, UT, U.S.A.
Steven J. Owen
Sandia National Laboratories, Albuquerque, NM, U.S.A.
This paper presents an automated tool for local, conformal refinement of all-hexahedral meshes
based on the insertion of multidirectional twist planes into the spatial twist continuum. The
refinement process is divided into independent refinement steps. In each step, an inserted twist
plane modifies a single sheet or two parallel hex sheets. Six basic templates, chosen and oriented
based on the number of nodes selected for refinement, replace original mesh elements. The
contributions of this work are (1) the localized refinement of mesh regions defined by individual
or groups of nodes, element edges, element faces or whole elements within an all-hexahedral mesh,
(2) the simplification of template-based refinement into a general method and (3) the use of hex
sheets for the management of template insertion in multi-directional refinement.
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