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Tutorials
Start using EDEM with our interactive tutorials.
Physics Models Tutorials
These tutorials are intended for users who are new to the EDEM contact models (physics behavior of particle/Geometry elements when they come into contact with each other) and describes how to use the appropriate contact models.
EDEM 2020 Linear Elastic Bonding Model Unconfined Compression
This tutorial describes additional options and models of EDEM, focusing on how to use the Linear Elastic Bonding Model (LEBM) with Volume Packing.
EDEM Simulator - Run the Simulation
Once you have set up the model, learn how to run fast and efficient simulations using EDEM Simulator.

Welcome
What's New
New features and enhancements available in EDEM.
About EDEM
EDEM is a high-performance simulation software for bulk and granular materials.
Release Notes
This section contains information about the EDEM release, such as key features, enhancements, bug fixes, and known issues.
Tutorials
Start using EDEM with our interactive tutorials.
- Introduction to EDEM Tutorials
  These introductory tutorials are intended for users who are new to EDEM, and want to learn the fundamentals of setting up, running, and analyzing a simulation.
- Physics Models Tutorials
  These tutorials are intended for users who are new to the EDEM contact models (physics behavior of particle/Geometry elements when they come into contact with each other) and describes how to use the appropriate contact models.
  - EDEM 2000 Edinburgh Elasto-Plastic Adhesion (EEPA) Tablet Press
    This tutorial describes the usage of the Edinburgh Elasto-Plastic Cohesion (EEPA) contact model through the simulation of a pharmaceutical tablet press.
  - EDEM 2010 Tavares UFRJ Breakage SAG Mill
    This tutorial decribes how to setup and analyze an EDEM simulation using the built-in Tavares UFRJ Breakage model.
  - EDEM 2020 Linear Elastic Bonding Model Unconfined Compression
    This tutorial describes additional options and models of EDEM, focusing on how to use the Linear Elastic Bonding Model (LEBM) with Volume Packing.
    - EDEM Creator - Set up the Model
      Learn how to set up a simulation model and equipment, and define the generation of bulk materials using EDEM Creator.
    - EDEM Simulator - Run the Simulation
      Once you have set up the model, learn how to run fast and efficient simulations using EDEM Simulator.
    - EDEM Analyst - Analyze the Bonds
      The final step in this tutorial is to learn how to review, examine, and analyze the bonds formed in the simulation using EDEM Analyst.
  - EDEM 2400 Heat Transfer
    This intermediate tutorial describes the usage of the Heat Transfer model, and is intended for users who have covered the introductory tutorials, as the initial set-up of the simulation is abbreviated and basic functionality is not explained in detail.
  - EDEM 2500 Bonding V2
    This tutorial describes the usage of the Bonding V2 model, and is intended for advanced users with a significant level of experience with EDEM and focuses on the usage of Meta-Particles.
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.
EDEM Calibration Kits
The EDEM Calibration kits are a collection of EDEM models of standard bulk solids characterization tests commonly used for EDEM material model 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 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.

EDEM Simulator - Run the Simulation

Once you have set up the model, learn how to run fast and efficient simulations using EDEM Simulator.

To run the simulation:

Click the

icon on the toolbar to open EDEM Simulator.

Set the Time options

The first step in running the simulation is to set the Time Step. The Time Step is the amount of time between iterations (calculations). The Time Step value is based on the material properties, and is usually set between 20% and 40% of the automatically calculated Rayleigh Time Step.

To set the Time Step:

Clear the Auto Time Step checkbox.
Set the Fixed Time Step Lower to 1e-05 s.
The percentage of Rayleigh time step is calculated automatically (~5%).
Set the simulation time and data write-out frequency.
The simulation time is the amount of real time your simulation represents.
1. In the Simulation Time section, set the Total Time to 2 s.
2. Set the Target Save Interval to 0.01 s to specify the write-out frequency.

Set the Solver Engine

The next step in this tutorial is to set simulation parameters Simulator Engine for the CPU mode, along with the GPU parameters.

To set the solver engine:

Select either CPU Solver or GPU Solver engine.
If you have selected CPU, set the grid size to 3 R_min.

Run the Simulation

The last step is to run the simulation.

To run the simulation:

Click the Start Progress icon in the Simulation window.
In the Viewer Controls, click the Refresh Viewer icon or the enable Auto Update icon at any point to update the Viewer to view the progress of the simulation.

Next Step - Analyze the Bonds