The Export External Data File action enables
you to export your results as an Ansys External Data File (.axdt). This file can be imported into the External
Data system, which can be read into a Mechanical application
or System Coupling component system.
The file format for an Ansys External Data File (.axdt) is described in Ansys External Data File Format in the Workbench User's Guide.
The File setting specifies a file for the
data to be exported to. You may type a filename or Browse 
to search for a file to export the results to.
The default filename is export.axdt and the default
filepath is your current working directory.
The Location setting specifies the locators for which the results of your variables are written.
Note: For conjugate heat transfer cases, you should make sure that the selected location corresponds to the fluid/solid side of the interface, as intended.
The Unit System setting specifies the units for the exported data. By default, this uses the global units system selected in Edit > Options. For details, see Setting the Display Units.
Note: The following unit systems in CFD-Post are not supported in the External Data system:
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In such cases, the External Data system cannot determine the unit system used in the file. If any of the above systems is selected in CFD-Post, a warning is issued, and the data will be exported in SI units.
The Boundary Data setting specifies Hybrid or Conservative boundary values.
If Boundary Data is set to Current, this setting is picked up from each variable. For details, see Variables Details View.
The Select Recommended Variables list box allows you to select the variables to export. You can select from the following options:
Heat Flow
Note: For Fluent results, Heat Flow is not always defined at the CHT interface boundaries. You should ensure that heat fluxes are available at the boundaries you export.
HTC and Wall Adjacent Temperature
This option allows you to export the
Wall Heat Transfer CoefficientandWall Adjacent Temperaturevariables to the external data file.This option is not available for inviscid flows and Eulerian multiphase cases. For Eulerian multiphase cases, you can select phase-specific temperatures from the Additional Variables list. For a list of Fluent field variables and their equivalent in CFD-Post, see Fluent Field Variables Listed by Category.
Note: For cases where you have specifically solved for conjugate heat transfer, it is recommended that you export the solid-side
Temperature, instead ofHTC and Wall Adjacent Temperature.The
HTC and Wall Adjacent Temperaturevariable is not calculated for laminar flow and will not appear in the Export External Data File window for such cases.Temperature
For multiphase cases, CFD-Post will calculate and output the Bulk Temperature, which is the temperature weighted by the volume fraction of the individual phases. You can select phase-specific temperatures from the Additional Variables list.
Note: For cases where you have specifically solved for conjugate heat transfer, it is recommended that you export the solid-side temperature instead of the fluid-side temperature.
For multiphase cases that include a combined temperature variable instead of phase-specific temperatures, CFD-Post will not calculate the Bulk Temperature. However, the combined temperature variable will be written to the output file under Bulk Temperature.
Note: User defined variables named Temperature or Heat Flow will be ignored and a warning
message will be issued.
In addition to the variables listed in the Select Recommended Variables list box you can select other field variables you have set to output in Fluent. You can hold down the Ctrl key to select more than one variable or use the Shift key to select a block of variables.
Note: User defined variables named Temperature or Heat Flow will be ignored and a warning
message will be issued.
The Formatting tab enables you to specify only a precision value. This setting is the same for the Export command. For details, see Export.