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Comsol Multiphysics Meshing
Citation preview
24/12/2011
1
Meshing
Interactive Meshing Environment
The Free Mesher
Mapped and Swept Meshes
Geometry Kernels and CAD file formats CAD for FEA
Importing CAD files Import of parts and assemblies
Repair and Defeaturing
Overview
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Automatic and interactive meshing
Free tetrahedral
Boundary layer
Mapped
Swept
Mixed
Adaptive
Model courtesy Metelli S.p.A.
Free Mesher
Unstructured mesh with triangular or quadrilateral elements in 2D and tetrahedral elements in 3D
Most general mesher (no constraints on the geometry)
Automatic or user control of parameters
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Mapped Mesh
Quadrilateral (quad) elements
2D or faces in 3D
Regular grid mapped onto the real geometry
Swept Mesher
Prism or hexahedral (block) elements
Sweeping from several source faces for circular and straight
sweep paths
Control the mesh on the source face and the distribution in the
sweep direction
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Boundary Layer Meshing
Region of dense mesh along specified boundaries
Layered quadrilateral mesh in 2D
Layered prism or hexahedral mesh in 3D
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Adaptive meshing
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Hands-on Exercise
Learn how you can use the meshing sequence.
Learn how to create structured meshes using the swept mesher.
Hands-on Exercise
Learn how to use the free mesher and its parameters
Minimum element size
Resolution of curvature
Resolution of narrow regions
Element growth rate
Check the mesh quality
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Hands-on Exercise
Learn how you can create structured meshes using the
mapped and swept mesher.
If Meshing of Part Fails
Identify problem boundaries
Change the mesh parameters Useful parameters are maximum element size, resolution of narrow regions
Use the defeaturing tools
Modify geometry object in CAD program
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Meshing