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.
Figure 1 Submarine in fluid (3D boundary layers)
Figure 2 Close-up submarine in fluid (3D boundary layers)
Figure 3 Cylinder head (2D multiple layers)
Figure 4 Cylinder head (3D multiple layers)
See also the following meshing methods in ADINA: