When CHARM Version 11+ is installed it comes with files necessary to run a test case. Open the example files (dw1.emg, dw1.grd, and dw1.met) via the File (dw1.emg), Grid (dw1.grd), and MetFile (dw1.met) menu items. A map file (dw1.map) is also available for display when a footprint is visible. Of course, a Yahoo map can also be downloaded automatically.
Once the files are opened, a plume footprint can be displayed using Displays - Plume and entering a time since release to display. The overpressures footprint from a pressurized container failure can be displayed using Displays - Mechanical Overpressures.