The Output Control panel is used to manage the way files are written by the solver. If a transient simulation is running, you can control which variables will be written to transient results files, and how frequently files will be created. Results can be written at particular stages of the solution by writing backup files after a specified number of iterations. These backup files can be loaded into CFD-Post so that the development of the results can be examined before the solution is fully converged. Monitor data can also be written to track the solution progress. Particle tracking data can be written for postprocessing in CFD-Post. Surface data can be exported.