Field Functions Reference

When you execute a data mapper, Simcenter STAR-CCM+ creates field functions that allow you to access the mapped data and to determine whether the mapping process was successful.

Mapped Flag, Mapped Vertex Flag
These field functions allow you to determine where, on the target mesh, the mapping process was successful. The functions also show you where the process failed. When you execute a data mapper, Simcenter STAR-CCM+ creates either one of these field functions, depending on whether the target stencil is Cell/Face (Mapped Flag), or Vertex (Mapped Vertex Flag).
To use these field functions, plot the relevant function on the target mesh in a scalar scene. At each cell, face, or vertex, the field function assumes a discrete value that identifies the success or failure of the mapping process for that face, cell, or vertex:
  • 0—Successfully mapped.
  • 1—Failed proximity constraint check.
  • 2—Failed normal direction constraint check.
  • 3—Failed imprinting.
  • 4—Failed mapping. Applied estimated alternate values.
  • 5—Not mapped. This value is only relevant for data mappers using geometry parts as targets. When the targets are geometry parts, some cells/faces on the corresponding region are not used in the mapping process.
Based on the mapping operation outcome, you can choose appropriate values for the tolerances.
When you execute more than one mapping operation, either from the same data mapper or from different data mappers, Simcenter STAR-CCM+ updates the field function values to represent the latest mapping process.
[Mapped Data]
Simcenter STAR-CCM+ stores the mapped fields in field functions that are created when you execute the data mapper or the Pre-Register Mapped Fields action. Mapped data field functions have the default name, mapped<Target_stencil><Field_name>, or a custom name specified using the Mapped Names property for the mapper. See Data Mappers Reference.