10th International Meshing Roundtable
Newport Beach, California, U.S.A.
October 7-10, 2001
Center for Applied Scientific Computing
Lawrence Livermore National Lab
Livermore, CA 94551
We have developed tools for the efficient preparation of CAD geometries for mesh
generation. Geometries are read from IGES files and then maintained in a boundary representation
consisting of a patchwork of trimmed and untrimmed surfaces. Gross errors in the
geometry can be identified and removed automatically while a user interface is
provided for manipulating the geometry (such as correcting invalid trimming curves
or removing unwanted details). Modifying the geometry by adding or deleting surfaces
and/or sectioning it by arbitrary planes (eg. symmetry planes) is also supported.
These tools are used for robust and accurate geometry models for initial mesh
generation and will be applied to in situ mesh generation requirements of moving
and adaptive grid simulations.
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