Input

This section is used for the definiton of the DEM data will be processed. The input DEM datata can be selected and filtered by time range, steps frequency and more advanced options (see Figure 55).

Figure 55 - Input section of coarse-graining module.

Input DEM data

Clicking on the icon located at the right side of the Input DEM Data field gives access to dialog to specified the DEM data to be post-processed from one of the supported formats:

• EDEM 2017+

• LIGGGHTS-DUMP

• LIGGGHTS-VTK

• P4X

Use Contacts

Users can specify if they want to use the DEM contact data for the coarse-graining processing by activated the check box:

• Particle: it refers to the particle-particle contacts data.

• Wall: it referes to the particle-wall contacts data.

Use Geometry

Users can specify if they want to include the surface geometries/walls into the output datasets.

Time Steps

Users can define the range of the timesteps to be processed by the coarse-graing:

• All: if activated, all the time-steps from the input DEM data are proccessed.

• Start: if All is not activated, it defines the time at which coase-granning module shoud begin processing the input DEM data.

• End: if All is not activated, it defines the time at which coase-granning module shoud stop processing the input DEM data.

Frequency

Users can choose the frequency to read the timesteps from the input DEM data. For instance, a Frequency = 2 means that a timestep every two will be read and post-processed.

Pre-filters

Users can choose different types of filters that are applied to the input DEM data before being processing by the coarse-graining module:

• Overwrite Groups by Size

• Filter Group ID

• Filter by Bounding Box

• Overwrite Velocity

• Overwrite Groups