Case 1D Plate With Hole (Mesh Refinement using a Mesh Region)
Contents
This example extends example Case 1B by refining the mesh adjacent to the hole using a mesh region (Mesh_region).
Data File |
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* Unstructured_mesh_data ! --------------------------------- Default_element_size 0.4 Element_size_bounds IDM=2 /Max. Element Size/ 0.4 /Min. Element Size/ 0.4 Mesh_regions IDM=1 1
* Mesh_region NUM=1 ! --------------------------------- Region_type "Circular" Region_size IDM=3 /X-Cent/ 0.0 /Y-Cent/ 0.0 /Radius/ 2.0 Element_size 0.2
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The default mesh size is increased to 0.4 but a mesh size of 0.2 is assigned to mesh region 1. Mesh region 1 is defined as being active on the Unstructured_mesh_data data structure
The mesh region 1 (Mesh_region) is defined as a circle centred at the middle of the hole and with radius = 2.0. The mesh region therefore only includes the points defining the quadratic curves on the hole boundary. |
The generated mesh is shown below
Mesh for Default Mesh Size = 0.4 and Element Size = 0.2 in Mesh Region 1
The data and result files for the project are in directory: mesh_001\Exercises\Case 1D