Structured_mesh_data
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Data Structure: Structured_mesh_data |
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Structured mesh generation data structure |
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Structured_mesh_data NUM=ival where ival is the data structure number |
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Overview The Structured_mesh_data mesh generation data structure defines the main control data for structured mesh generation including: •The default number of divisions for all lines (overwritten if required by specific division data defined in Structured_line_set data structures). •The list of Structured_line_set data structures to be used. •Assignment of a structured mesh algorithm to specific geometry entities.
The structured mesh generation algorithm generates regular meshes on geometry defined using quadrilateral surfaces in 2-D or hexahedral volumes in 3-D. The limitation of the algorithm is that the number of divisions on opposing lines in a surface must be the same. This is enforced by automatically evaluating sets of lines within the geometry that must have the same number of divisions. This also simplifies the definition of the line division data, as only one line within any set needs to be assigned division data.
In addition to defining the number of divisions on a line, a weighting for the distribution of the division size may also be defined using the Structured_line_set data structure.
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 | Default_divisions Default number of divisions |
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The default number of divisions to be used on each geometry line (Default 1). If the number of divisions is specified directly for any geometry line using Structured_line_set data it will overwrite this default value.
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| List_structured_line_sets List of structured line sets |
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List of structured line sets ( Structured_line_set ) which define specific mesh division data for specified lines.
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| Lines List of structured lines (Optional) |
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List of lines to be meshed using a structured mesh.
Notes •If structured mesh generation is defined ( Generation_algorithm = 1 on the Mesh_control_data structure) then by default all meshed lines will be assigned structured meshes.
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| Surfaces List of structured surfaces (Optional) |
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List of surfaces to be meshed using a structured mesh.
Notes •If structured mesh generation is defined ( Generation_algorithm = 1 on the Mesh_control_data structure) then by default all meshed surfaces will be assigned structured meshes •All lines defining the boundary of the surface must be meshed with the structured mesh algorithm.
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| Volumes List of structured volumes (Optional) |
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List of volumes to be meshed using a structured mesh.
Notes •If structured mesh generation is defined ( Mesh_generation_flag =1 on the Mesh_control_data structure) then by default all meshed volumes will be assigned structured meshes •All surfaces defining the boundary of the volume must be meshed with the structured mesh algorithm.
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