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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.
Creator Tree-Bulk Material
Creator Tree-Bulk Material allows you to add bulk material and bulk material particle shapes to a model and define their interactions.
Add Bulk Material Particles
You can add bulk material particle shapes such as Multi-Sphere, Polyhedral, and Sphero-Cylinder.
Add Multi-Sphere Particles
You can define a particle using one or more spheres, and overlap multiple spheres to create Multi-Sphere particles.
Modify a Particle Shape
You can modify a particle shape by changing the values in the table.

Welcome
What's New
This section describes the key features in EDEM version 2025.1.
About EDEM
EDEM is a high-performance simulation software for bulk and granular materials.
Hardware Requirements
This section details the minimum system requirements and requisites for running EDEM.
Release Notes EDEM 2025.1.1
This section contains information about the EDEM 2025.1.1 release, such as bug fixes.
Release Notes EDEM 2025.1
This section contains information about the EDEM 2025.1 release, such as key features, enhancements, and bug fixes.
Tutorials
Start using EDEM with our interactive tutorials.
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.
- Creator Tree-Project
  Creator Tree-Project allows you to define the title and description for the simulation.
- Creator Tree-Bulk Material
  Creator Tree-Bulk Material allows you to add bulk material and bulk material particle shapes to a model and define their interactions.
  - Add Bulk Material to a Model
    A Bulk Material comprises the particle bulk material properties, particle shape, and size distribution.
  - Add Bulk Material Particles
    You can add bulk material particle shapes such as Multi-Sphere, Polyhedral, and Sphero-Cylinder.
    - Add Multi-Sphere Particles
      You can define a particle using one or more spheres, and overlap multiple spheres to create Multi-Sphere particles.
      - Generate Multi-Sphere Particles from a CAD Template
        You can use imported CAD meshes created in other applications as particle templates that provide instructions on how to create a particle whose properties are automatically calculated.
      - Add a Particle Shape from Library
        You can add and describe various particle shapes from the Library.
      - Modify a Particle Shape
        You can modify a particle shape by changing the values in the table.
      - Import a Particle Shape
        You can import any particle created in EDEM for use in other models.
      - Export a Particle Shape
        You can export a particle shape for use in other EDEM simulations after it has been defined.
      - Calculate Particle Properties
        EDEM allows you to configure the particle mass, volume, and inertia either manually or automatically.
    - Add Polyhedral Particles
      You can define a Polyhedral particle using one of the basic polyhedral particle shapes or an imported CAD geometry.
    - Add Sphero-Cylinder Particles
      You can define a Sphero-Cylinder particle using the length and radius, where the length is the total length of the particle including the rounded ends.
  - Create and Define Meta-Particles
    A Meta-Particle is a collection of individual Multi-Sphere or Sphero-Cylinder particles bonded together using EDEM’s Bonding V2 contact model.
  - Size Distribution for Particle Shapes
    You can specify the size distribution for the particle shapes in each Bulk Material including Meta-Particles.
  - Material Starter Packs
    The Soils Starter and Powders Starter packs are installed with EDEM.
  - Materials database
    You can store and transfer material, interaction data, Meta-Particles, and Material Block data in a database file between simulations.
- Creator Tree-Equipment Material
  Creator Tree-Equipment Material allows you to add equipment material to a model and define interactions between materials.
- Creator Tree-Geometries
  Creator Tree-Geometries allows you to use Geometry sections to construct the environment in which your bulk material interacts.
- Creator Tree-Environment
  Creator Tree-Environment allows you to define global settings for the simulation in the Environment section.
- Creator Tree-Physics
  Creator Tree-Physics allows you to add Physics interactions.
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 Physics 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.

Modify a Particle Shape

You can modify a particle shape by changing the values in the table.

To modify a particle shape:

Select the particle from Shape Library dialog box and then select Modify Shape.
Set the radius, X, Y, Z position and sphere separation (in the X and Y axes) of each shape in the Adjust Settings dialog box.