Applying Thermal Loads

Use the temperature field computed in the thermal analysis as a thermal load in the stress analysis.

Start by mapping the temperature data, available on the CHT analysis FV mesh, to the FE mesh used for stress analysis. To interpolate the temperature data from the Manifold (Thermal) part to the Manifold (Stress) part, create a volume data mapper:
  1. Right-click the Tools > Data Mappers node and select New Data Mapper > Volume Data Mapper.
  2. Rename the Data Mappers > Volume Data Mapper 1 node to Temperature Mapper.
Specify the solid part of the CHT analysis, Manifold (Thermal), as the source mesh from which to take temperature. Set the source stencil to specify the location where the solution is available on the source mesh. As the source mesh is a finite volume mesh, the solution is available at the cell centroids.
  1. Edit the Data Mappers > Temperature Mapper node and set the following properties:
    Property Setting
    Source Volumes Parts > Manifold (Thermal)
    Source Stencil Cell
Complete the source settings by specifying temperature as the field to map. When you execute mapping operations, the mapped fields become available as field functions. Assign the mapped temperature field function a suitable name:
  1. For the same node, Temperature Mapper, set the following properties:
    Property Setting
    Scalar Field Functions Temperature
    Mapped Names CHT - Thermal Load
Specify the target mesh for the mapping operation. As the target mesh is a finite element mesh, map the source temperature data to the mesh vertices:
  1. Edit the Temperature Mapper > Target Specifications > Volume 1 node and set the following properties:
    Property Setting
    Target Entities Parts > Manifold (Stress)
    Target Stencil Vertex (default setting)
Execute the mapping operation:
  1. Right-click the Temperature Mapper node and select Map Data.
    Simcenter STAR-CCM+ interpolates the temperature data to the target FE mesh, and generates the corresponding CHT - Temperature Load field function.
To visualize the mapped temperature in a scalar scene:
  1. Create a scalar scene and rename it to Thermal Load.
  2. Edit the Scenes > Thermal Load node and set the following properties:
    Node Property Setting
    Outline 1 Outline Deactivated
    Scalar 1
    Parts Parts Parts > Manifold (Stress)
    Scalar Field Function CHT - Thermal Load
    Color Bar Color Map cool-warm


Finally, use the mapped data field function, CHT - Thermal Load, to specify the stress analysis thermal loads:
  1. Edit the Regions > Manifold (Stress) > Physics Values node and set the following properties:
    Node Property Setting
    Specified Temperature Method Field Function
    Scalar Function CHT - Thermal Load
  2. Save the simulation.