Geometry
You can build the geometry from geometric primitives. Here, use instead a file containing the geometry that has been provided for convenience.
The location of the file used in this exercise varies based on your installation. For example, if the installation is on your hard drive, the file path might be similar to C:\Program Files\COMSOL\COMSOL64\Multiphysics\applications\.
1
In the Geometry toolbar choose Import .
2
In the Settings window for Import, locate the Import section, and browse to the model’s Application Libraries folder. Double-click the file packed_bed_latent_heat_storage.mphbin.
3
In the Settings window for Import, click Import.
4
Click Build All Objects  to display the geometry.