Applying Heat Fluxes

You can apply heat flux to define a flow of heat into or out of a surface on your model.

This task shows you how to:

See Also
About Heat Fluxes
Spatially Varying Mapped Data
In Other Guides
Support Selection
Entering Tabular Data
Feature Manager

Apply Uniform Heat Fluxes

You can apply a heat flux that is uniform across the entire surface.

Note: Create a temperature initial condition to establish the starting temperature before solving any simulation with temperature-dependent features.

  1. From the Thermal section of the action bar, click Heat Flux .
  2. Optional: Enter a descriptive Name.
  3. Select one or more faces as the geometry supports in the model.
  4. Set Distribution to Uniform.
  5. Enter a value for the Magnitude of the heat flux.
  6. Optional: Enter a Scale factor that is applied to the magnitude in each step.
  7. Optional: Select an Amplitude that defines the magnitude during the step.
  8. Click OK.

Apply Varied Heat Fluxes with Mapped Data

You can apply a heat flux that has different values at different points on the model.

Note: Create a temperature initial condition to establish the starting temperature before solving any simulation with temperature-dependent features.

Before you begin: You must have your spatially mapped data prepared. The mapped data specifies different heat flux values at various points in space.
  1. From the Thermal section of the action bar, click Heat Flux .
  2. Optional: Enter a descriptive Name.
  3. Select one or more faces as the geometry supports in the model.
  4. Set Distribution to Mapped spatial data.
  5. Click Table.
    The Flux Distribution dialog box opens, where you can enter or import the mapped heat flux values.
  6. Choose the Data source for the mapped heat flux values:
    • Table: Enter or import the mapped data into the table.

    • Referenced document: Select a 3DEXPERIENCE document that contains the mapping data. Click to search for the document in the 3DEXPERIENCE platform database. For details about the required file format, see Mapping Data File Formats.

      Changes in the referenced document are taken into account every time you run the simulation.

  7. If Data source is Table, specify the mapped data in the table:
    • To import the data, right-click anywhere in the table and select Import. For details about the required file format, see Mapping Data File Formats.
    • To enter the data manually, double-click in each cell and enter a value. For example, enter X-, Y-, and Z-coordinates and the corresponding heat flux Value in each row of the table.
  8. Enter the Flux outside the mapped region. This is a default heat flux value.

    The simulation attempts to map all of the source data points and their associated heat flux values onto points in the target model. For any target points where the simulation cannot map to a source point, it substitutes this default value.

  9. Select an Axis system definition for the coordinates of the mapped data values.

    • Global: Aligns the local feature triad with the global coordinate system.

    • Local: Aligns the local feature triad with a selected axis system in the model.

      Using a custom local axis system simplifies the three-dimensional definition of points in space. The app interprets the X-, Y-, Z-coordinates in the context of the local coordinate system.

  10. Optional: Select Plot Data to display symbols that indicate the locations and magnitudes of the mapped values on the model.

    Tip: If you click any row in the data table, the corresponding source point is highlighted on the model.

  11. Optional: To adjust the search control parameters, expand Search tolerance.

    See Mapping Search Controls and Mapping Search Control Options for descriptions of these parameters.

  12. Click OK.