The solution of DROP3D can be printed to a file with a user-selectable name at specified intervals.
The solution can be saved only once at the end of the calculation (Final solution) or at fixed intervals during the iterative solution process. When saving the solution every N iterations, the solution file is either overwritten (Overwrite), or saved in numbered files (Do not overwrite). It is usually wise to save the solution every 40-50 iterations when working on large projects so that the work is not completely lost in case of computer malfunctions.
When running SLD conditions with Splashing and bouncing → By body force (See Splashing and Bouncing by Body Force), an additional intermediate droplet file droplet.primary will be saved for each diameter in the distribution when the change in total collection efficiency drops below the level of the Activation trigger and the Delay number of iterations have elapsed, just before body forces are computed. This file contains the droplet solution without body forces and can be used to restart the calculation or to compare the surface impingement distribution with and without body forces.