duck

Original model from Viewpoint Datalabs International, Inc.

Initial tetrahedral mesh has 13,977 vertices, all on the boundary surface.

Triangular boundary surface mesh of the initial mesh.

There are 7,448 tetrahedral elements with minimum dihedral angle less than five degree.

After sink-insertion, 974 small slivers survived.

There are 94 slivers left after sliver-exudation.
Number of tetrahedra is decreased from 190,602 to 185,303.
Overall distribution of minimum dihedral angle is also improved.