Home
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-Environment
Creator Tree-Environment allows you to define global settings for the simulation in the Environment section.
Define Cylindrical Periodic Boundaries
You can define Cylindrical Periodic Boundaries within the domain using the axis from a rotational kinematic or a vector based on a starting or end point.
Cylindrical Periodic Boundary Known Issues and Limitations
Cylindrical Periodic Boundaries have the following limitations:

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 version 2025.1.1
This section contains information about the EDEM 2025.1.1 release, such as bug fixes.
Release Notes version 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.
- 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.
  - Define the Domain and Geometry
    EDEM allows you to run simulations in the model domain area. You define the domain and Geometry in the Environment section of the Creator Tree and is indicated by the red box in the Viewer.
  - Define Dynamic Domain Conditions
    You can define a geometric object as Dynamic Domain to make all the material inside the object active and exclude any stationary material outside the object from calculations, which speeds up simulation.
  - Define Cylindrical Periodic Boundaries
    You can define Cylindrical Periodic Boundaries within the domain using the axis from a rotational kinematic or a vector based on a starting or end point.
    - Cylindrical Periodic Boundary Known Issues and Limitations
      Cylindrical Periodic Boundaries have the following limitations:
  - Define Linear Periodic Boundaries
    You can define Linear Periodic Boundaries to control what happens to a particle once it leaves the domain.
- 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.

Cylindrical Periodic Boundary Known Issues and Limitations

Cylindrical Periodic Boundaries have the following limitations:

Plugin (API) factories are not supported with Cylindrical Boundary Conditions when the Plugin factory version is 2.2 or higher.
Simulator Auto Grid Size is not supported with Cylindrical Boundary Conditions.
GPU CUDA can run up to a 180 degrees angle while CPU is limited to 150 degrees
Cylindrical Boundaries cannot be used at the same time as Linear Boundaries.
Cylindrical Periodic Boundaries are not compatible with the Bonded model.
The Preserve contacts option is not supported with Cylindrical Boundaries conditions.
Volume packing is not supported with Cylindrical Boundaries Conditions.
The Geometry must be consistent with the periodic boundaries to ensure that particles encounter a seamless transition when crossing them. For example, a cylinder with 50 sides divides the full circle into segments of 7.2 degrees (360 degrees/50). In this case, setting a boundary at 120 degrees would not align correctly, whereas, a boundary at 115.2 degrees (7.2 degree × 16) would be correctly aligned.

The following image shows a low quality mesh (left) and high quality mesh required for boundary conditions (right).