The loop also contains instruction to write output files. It is important to note that after moving the grains in the computational loop you have to use the _set_particles()_ function to search the new location of the grains in the mesh.
The loop also contains instruction to write output files. It is important to note that after moving the grains in the computational loop you have to use the _set_particles()_ function to search the new location of the grains in the mesh.
__The handy test cases are:__
## Handy Test Cases
Prerequisite Directory | Prerequisite Run | Test Case Directory | Test Case