Engineering Solutions

Rebuild Mesh panel

Rebuild Mesh panel

 Previous topic Next topic No expanding text in this topic  

Rebuild Mesh panel

 Previous topic Next topic JavaScript is required for expanding text JavaScript is required for the print function  

Location:   2D page

 

 

Use the Rebuild Mesh panel to streamline the process of remeshing existing meshes to generate a new mesh with  good quality and flow.

The rebuild mesh functionality utilizes the same parameter and criteria files used by Altair BatchMesher to define the quality criteria and relevant mesh parameters. This algorithm saves significant time over the traditional automesh and quality correction approach.

The rebuild algorithm is useful for many different application.

•Remesh to adjust size, quality, and flow.

rebuild_mesh_adjust_size_quality_flow_before

Figure 1: Before

rebuild_mesh_adjust_size_quality_flow_after

Figure 2: After
•Change to a different element type.

rebuild_mesh_change_element_type_before

Figure 1: Before

rebuild_mesh_change_element_type_after

Figure 2: After
•Add or remove washer layers around holes, change the nodal density of a hole, adjust a hole diameter, or remove a hole.

rebuild_mesh_wash_layers_before

Figure 1: Before

rebuild_mesh_wash_layers_after

Figure 2: After
•Locally correct areas with bad mesh flow.

rebuild_mesh_bad_mesh_flow_before

Figure 1: Before

rebuild_mesh_bad_mesh_flow_after

Figure 2: After

 

Rebuild is currently supported for first-order FE meshes that are not associated with geometry or attached to 3D element faces. 1D features (plot elements) are important for defining the mesh topology. These features are utilized as vertices, edges and faces, in a similar way to geometry, during the rebuild operation. Such features are generated automatically by the midmesh tool, via the features panel, or can be manually created. If 1D features are not defined on the mesh, they will be automatically generated internally.

Update several options from the parameter file to control the resulting rebuild mesh output.

Option

Action

Element size

Define target element size.

Element Type

Define target element type.

Feature angle

Define the feature and vertex angle used for auto generating 1D features, when required.

Surface hole recognition

Define the parameters for performing hole treatment for circular holes.