Anisotropic Meshing

Anisotropic meshing is available in both 2D and 3D to support:

  • Boundary layers, and
  • Multiple elements across thin sections.

Boundary Layers

  • Input is a triangular mesh in 2D or a tetrahedral mesh in 3D.
  • Boundary layers are formed using a special point insertion method along normals.
  • Resulting anisotropic mesh is optimized and smoothed, keeping boundary layer elements intact.

Multiple Layers

  • Methodology is similar to that of boundary layers.
  • Input is a triangular mesh in 2D or a tetrahedral mesh in 3D, as coarse as possible.
  • Points are inserted along mesh edge paths in the thin sections.
  • Standard insertion is then applied to conform to given mesh density.
  • Optimization and smoothing maintain the multiple layer elements intact.

Image Gallery

The following images show some anisotropic meshes obtained with ADINA. Please click on thumbnails for larger images.

Submarine in fluid (3D boundary layers).
Close-up submarine in fluid (3D boundary layers).
Cylinder head (2D multiple layers).
Cylinder head (3D multiple layers).
 

Other ADINA Mesh Generation Features:

Triangular Surface Meshing Quadrilateral Surface Meshing
Mapped Meshing Tetrahedral Meshing Mesh Adaptation-Repair
Anisotropic Meshing Automatic Grading Curvature-based Meshing

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