You can end your Fluent session by using the Close Fluent command under the File ribbon tab.
File → Close Fluent
If you want to end your Fluent session without saving
your work, you can use the Close Without Save command under the File ribbon tab. You can
also use the corresponding text command (file/close-without-save).
File → Close
Without Save
Alternatively, to discard unsaved changes in Fluent and load the setup files into the current Fluent session, you can use the Reload command in the Fluent File ribbon tab (see Reloading Data and Synchronizing Fluent with Workbench for details).
File → Reload
You can end your Workbench session by using the Exit command under the Workbench File menu.
File → Exit
All open applications that are associated with your Workbench session, including any open instances of Ansys Fluent, are automatically closed upon exiting Workbench. If there is any unsaved data in Workbench or any of the open applications associated with your Workbench session, you will be prompted to save your project before exiting Workbench.
Important: There are several other circumstances in which open instances of Fluent as well as other applications are automatically closed:
Whenever you close the current project in Workbench, all open applications are automatically closed.
Whenever you open a different project in Ansys Workbench, all open applications associated with the original project are automatically closed.
Whenever a system is deleted, all open applications associated with that system are automatically closed.
Whenever data is reset or cleared from a cell, all open applications associated with that cell are automatically closed.