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Automatic Blocking Scheme for Structured Meshing in 2D Multiphase Flow Simulation

Guoy, Damrong and Jeff Erickson

Proceedings, 13th International Meshing Roundtable, Williamsburg, VA, Sandia National Laboratories, SAND #2004-3765C, pp.121-132, September 19-22 2004


13th International Meshing Roundtable
Willimasburg, Virginia, USA
September 19-22, 2004

Damrong Guoy
Center for Simulation of Advanced Rockets, Computational Science and Engineering Program,
University of Illinois at Urbana-Champaign,

Jeff Erickson
Department of Computer Science, University of Illinois at Urbana-Champaign

We present an automatic algorithm to construct blocking scheme for multiblock structured meshes in 2D multiphase flow problems. Our solution is based on the concepts of medial axis and Delaunay triangulation. We show that the quality of the blocking scheme strongly depends on the quality of Delaunay triangulation. Therefore, well-known techniques and issues like Delaunay refinement and geometric degeneracy resurge again in multiblock structured meshes.

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