Applying Existing Temperature Data

For existing temperature data, you can use the Specified Temperature physics model. This model allows you to apply a temperature profile on the solid region. The Solid Stress model accounts for the temperature load when computing the solid displacement.

  1. Follow the instructions in Applying Thermal Loads, choosing the Specified Temperature model.
To apply the temperature profile on the solid region:
  1. Select the Regions > [Solid Region] > Physics Conditions > Specified Temperature Option node and set Method to Specified.
  2. Select the Regions > [Solid Region] > Physics Values > Specified Temperature node and set Method as appropriate.
    • If the temperature load is defined using either a constant value, tabular data, or a field function that already exists on the solid mesh, specify the temperature load directly.
    • If the temperature field is available on a different mesh representation of the solid, for example an imported CAE model or a Simcenter STAR-CCM+ finite volume mesh, set up a data mapper to interpolate the temperature data from the source mesh to the finite element solid mesh. To achieve this, follow the remaining instructions in this section.
To map the temperature data from a different mesh representation of the solid:
  1. Right-click the Tools > Data Mappers node and select New Data Mapper > Volume Data Mapper.
  2. Edit the Volume Data Mapper node and set the following properties:
    Property Setting
    Source Volumes Select the source mesh from which to take the temperature data.

    Source volumes can be Simcenter STAR-CCM+ regions or parts, or volumes defined on an imported CAE model. For example, if the temperature field on the solid was computed in a Simcenter STAR-CCM+ CHT analysis, select the FV solid part or parts, associated to the solid region that you used in the CHT analysis.

    Source Stencil Select either Cell or Vertex based on the location where the solution is available on the source mesh.

    In finite volume source meshes, the solution is typically available at cell centroids. In finite element source meshes, the solution is typically available at vertices. If the temperature distribution was computed in a Simcenter STAR-CCM+ CHT analysis, select Cell.

    Scalar Functions Temperature
    Mapped Names When you execute the mapping operation, the mapped temperature data become available as a field function. Assign the mapped temperature field function a suitable name, using this property.
Specify the stress analysis FE mesh as the mapping target:
  1. Edit the Volume Data Mapper > Target Specifications > Volume node and set the following properties:
    Property Setting
    Target Volumes Select the solid part, or parts, associated with the stress analysis region.
    Target Stencil Vertex
  2. Execute the mapping operation. For temperature data computed in a finite volume analysis, you can either:
    • Execute the data mapper manually, after the simulation for the FV solid region is complete.
    • Set up automatic mapping at a specified frequency during the FV simulation run. In this case, set the frequency so mapping occurs once per time-step, or when the solution is complete.

    For more information, see Executing the Mapping Operation.

    Simcenter STAR-CCM+ interpolates the temperature data to the target FE mesh, and generates the corresponding [mapped_temperature] field function.
To account for the mapped temperature field in the computation of the displacements:
  1. Select the Regions > [Solid Region] > Physics Values > Specified Temperature node and set Scalar Function to the field function generated by the mapper, [mapped_temperature].
    If required, you can initialize the temperature field to a specified value. Initializing the temperature field is useful in cases where the mapped temperature field is needed before the execution of the mapping operation. You can initialize the temperature field in one of the following ways: