Using Backup Files

Simcenter STAR-CCM+ generates a set of files that can come in handy as backups of your work.

In your standard file-management software, along with your simulation files, sometimes there are more files in the same location with similar file names. Some file names only differ by a tilde character (~) added to each extension. For example, the files intake.sim and intake.sim~ present in the same folder.

Simcenter STAR-CCM+ automatically creates such a file once an existing simulation file is modified and saved; it is always the previous version of that simulation. Therefore if you wish to undo some changes after saving them to a simulation file, you can do so by opening the copy and saving it over the original simulation file.

The Simcenter STAR-CCM+ client does not always recognize this type of file, which prevents accidental opening and modification. However, it is easy to make the file accessible. Begin by selecting it in your file-management software.

Rename it in order to remove the tilde and give it a name different from the original simulation file.

With the tilde removed, the node of the file appears in the Open dialog, which is activated by the File > Load Simulation... menu item.

This means that the file is now readily accessible to Simcenter STAR-CCM+.

If you do not have write-access privileges for a simulation file, Simcenter STAR-CCM+ does not only fail to save your changes, but also fails to create or modify the copy. That fact is reflected in an exception message like this one.