Understanding the 2D meshing methods

The Meshing Method option on the 2D Mesh dialog box lets you control the algorithm the software uses to generate the mesh.

Subdivision meshing method

With the Subdivision meshing method, the software uses a recursive subdivision technique to generate the mesh on the selected faces. With recursive subdivision, the software repeatedly divides and then subdivides the selected geometry to create the mesh. With this method, once the software has generated the initial set of elements, it then performs a series of cleaning and smoothing operations to improve the overall quality of the mesh.

Example of a surface meshed with the Subdivision method

Paver meshing method

With the Paver meshing method, the software uses a hybrid technique to generate the mesh on the selected faces. With the Paver method, the software combines a paving technique with a recursive subdivision technique to produce more structured, boundary conforming free meshes with good quality. This hybrid approach allows the software to create a more structured mesh around the surface's outer boundary as well as around any interior holes (or “loops”) while still generating a free mesh on the rest of the surface.

With the Paver method, the exact process the software follows to generate the mesh differs slightly depending upon the type of elements you are using in your mesh.

• If your mesh contains only triangular elements, the software creates as many layers of structured elements as possible around the surface's outer boundary as well as around any interior loops. It continues to create layers of structured elements until they begin to intersect or interfere with each other. The software then uses a recursive subdivision approach to generate the mesh on the remaining portion of the surface.

• If your mesh contains only quadrilateral elements or a mix of quadrilateral and triangular elements, the software first generates a single layer of structured elements around the surface's outer boundary and two layers of structured elements around any interior loops. The software then uses a recursive subdivision approach to generate the mesh on the remaining portion of the surface.

Example of a surface meshed with the Paver method

How do I

Create a 2D free mesh

Learn more

2D free meshing

Using pre-defined favorite settings to create 2D meshes

Quadrilateral only meshing

Understanding free mapped meshes

Understanding free mesh generation

Fixing triangular element interior angle quality issues

About CAD curvature abstraction

Midnode placement for parabolic elements

Creating a separate mesh for each face or polygon body

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Understanding the 2D meshing methods, Simcenter 3D 2021.1 Series

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