Home
Appendix
This section provides additional information about how to estimate simulation time, supported EDEM File types, attribute definitions, and so on.
Command Line Example Commands
This section provides examples of the default processing options, and how to specify processing options and run simulation and export data.

Welcome
What's New
New features and enhancements available in EDEM.
Release Notes
This document contains information about the EDEM release, such as key features and enhancements, bug fixes, and known issues.
About EDEM
EDEM is a high-performance simulation software for bulk and granular materials.
Get Started with EDEM
The EDEM user interface comprises three icons for each simulation component - Creator, Simulator, and Analyst.
EDEM Creator
EDEM Creator is the pre-processor for creating an EDEM simulation model, including setting up equipment and defining the generation of bulk materials.
EDEM Simulator
EDEM Simulator is a powerful solver used for fast and efficient simulations.
EDEM Analyst
EDEM Analyst is the post-processor used to analyze and visualize the results of your simulation.
EDEM Contact Models
A Contact Model describes how elements behave when they come into contact with each other.
EDEM Cal Utility
EDEM Cal is a utility which works with EDEM and is designed to assist in performing calibration.
GPU CUDA Guide
The EDEM CUDA GPU module uses the latest General Purpose Computing on Graphical Processing Units (GPU) technology.
Programming Guide
The EDEM Programming Guide describes the EDEM API.
Coupling Interface Programming Guide
The Coupling Interface Programming Guide provides an overview of how to use the EDEM Coupling Interface to couple with a generic CFD code and/or Multi Body dynamics codes.
EDEMpy
EDEMpy is a Python library for accessing EDEM data from .h5 files (the underlying EDEM file format). EDEMpy does not require prior knowledge of advanced programming.
EDEM Solver Capabilities
EDEM contains four solver engines.
Appendix
This section provides additional information about how to estimate simulation time, supported EDEM File types, attribute definitions, and so on.
- EDEM File Types
  This section lists the EDEM file types, including Standard and Optional supported file types.
- Estimate Simulation Time
  It is challenging to estimate the exact real time required for a DEM simulation, as each simulation and each computer is different.
- Attribute Definitions
  The following tables provide detailed descriptions for Particle, Geometry, Contact, and Collision attributes.
- Calculate Characteristic Length
  The Characteristic Length is the average length of each feature in the CAD file.
- Use EDEM on a Remote Desktop
  Generally, simulations are set up on Windows. However, the simulation is run on a Windows or Linux processing machine which is remotely located.
- Command Line Example Commands
  This section provides examples of the default processing options, and how to specify processing options and run simulation and export data.
  - Replace Geometry from the Command Line
    The Replace Geometry command requires a configuration file that contains relevant information for each Geometry which is being replaced.
  - Run Dynamic Domain
    This section explains how to run Dynamic Domain from the command line.
  - Data Export Options
    In any EDEM simulation, you configure the export data settings in EDEM Analyst.
EDEM Terminology
Definitions of terms used in EDEM.
References and Bibliography
This section cites the contributions made by various authors and sources that have been used as reference material for EDEM, and the specifics of how they have been applied can be found in the individual contact model sections.

Command Line Example Commands

This section provides examples of the default processing options, and how to specify processing options and run simulation and export data.

Default Processing Options

Create and save a simulation deck using EDEM Creator.
Open a console (cmd) window then enter the following command:
```
edem.exe --console -i "c:\My documents\edem\mysim.dem" --rewind
```
The deck rewinds to the beginning, and then each Time Step is processed. A message is displayed once complete.
Open the deck and use the EDEM Analyst to perform post-processing.

Specify Processing Options

Create and save a simulation deck using EDEM Creator.
Open a console (cmd) window then change the folder to the EDEM bin folder.
Enter the following command:
```
edem.exe --console -i "c:\My documents\EDEM\mysim.dem" –p 4 –r 10
```
The simulation is run using four processors for a total run time of ten seconds.

Run Simulation and Export data

Create and save a simulation deck using EDEM Creator.
Open a console (cmd) window then change the folder to the EDEM bin folder.
Enter the following command:
```
edem.exe --console -i "c:\My Documents\EDEM\mysim.dem" -–rewind –ePC “c:\My Documents\EDEM\mysimdata.csv”
```
The simulation rewinds and then runs using the default processing flags. It then exports particle and contact data to a .csv file.

Run Simulation and Export data based on Deck Configuration

Create and save a simulation deck using EDEM Creator.
Switch to EDEM Analyst and then select File > Export > Results Data.
Define the export queries then specify the file name.
Click Close.
Go to EDEM Creator and save your deck.
The configuration file is updated with details of the export queries.
Open a console (cmd) window then change the folder to the EDEM bin folder.
Enter the following command:
```
edem.exe --console -i "c:\My Documents\EDEM\mysim.dem" -–rewind –e “c:\My Documents\EDEM\mysim.dfg”
```
The simulation rewinds and runs using the default processing flags. It then exports data based on the queries defined in the configuration file of the deck.