EQSM: An efficient high quality surface grid generation method based on remeshing

The EQSM method for the generation of unstructured triangular surface grids is presented. The method is based on remeshing techniques and avoids the need for traditional mesh triangulation approaches, such as the advancing front and the Delaunay methods. Normalized edge lengths, based on a metric derived from curvature or from a user-specified spacing, are employed as the remeshing criterion. It is assumed that the geometry is input in the form of composite parametric surfaces, with analytic definition or Ferguson- or Nurbs-type multiple patch representation. Examples, based upon typical aircraft geometries, are included to demonstrate how high quality grids can be efficiently generated on surfaces that exhibit a high degree of geometric complexity.