Particle breakage models for predicting comminution process in Rocky DEM

Learn more about the methods and models available in Rocky DEM to predict particle breakage for different types of particle shapes.

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Gomselmash adopts Rocky DEM–Ansys as its primary solution to enhance equipment

A world leader in agricultural machinery manufacturing applies the Rocky DEM–Ansys solution to improve product development.


Rocky DEM and Ansys integration

Discover a revolutionary new way to extend your multiphysics simulations.

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Accelerated process development in the agricultural industry

Discover why Rocky DEM is a powerful tool to reduce physical testing and prototyping in developing agricultural equipment.

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Dynamic Grinding Ball Impact Analysis of a SAG Mill Shell Liner

Learn how ME Elecmetal applied Rocky DEM and ANSYS Mechanical integrated solution to optimize processes and materials in a SAG mill liner.

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High Fidelity Particle Simulation Software

Provides decisive insight into granular flow behavior with
accurate particle representation.

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Multi-GPU for multiple possibilities

Multi-GPU solver capabilities facilitate extremely fast simulations,
enabling you to work with more data in less time.

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Advanced Breakage simulation

Rocky DEM simulates material breakage by calculating the
fragmentation of each particle based upon the energy
generated from impact.

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Particle simulation
where shapes do matter

Simulate Real-Scale Experiments

Rocky DEM’s high-performance computing (HPC) abilities can simulate a large number of real-sized and real-shaped particles faster and with less memory usage.

Model Realistic Materials

Modify a default shape, scan a real 3D object, or custom design your own shape and import it. Then define the behavior to be rigid or flexible, sticky or dry, breakable and more.

Solve Unique Problems

Rocky DEM’s representation of application-specific particle shapes is becoming essential to the successful engineering of bulk materials handling equipment.

Rocky DEM for Industry

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Food Processing

Enhance productivity by exploring granular flow behavior — the foundation for optimal quality, capacity, safety, and efficiency. Rocky DEM’s accurate particle representation is the key.

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Pharmaceutical & Biotech

Leverage Rocky DEM tools to improve pharmaceutical safety and quality while reducing development, experimentation, regulatory approval, and manufacturing costs.

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Agriculture Equipment

Test your equipment using particle simulation and enhance the efficiency of your agricultural processes. Rocky DEM is used the world over to help companies optimize their bulk agricultural materials.

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News and events


Coarse Grain Model (CGM) for CFD coupled simulations


Liquid bridge model: accounting for liquid film in wet material modeling


Solve industrial scale simulations with a large number of particles using the Coarse Grain Modeling (CGM)


Calibrating parameter inputs using simple bench-test comparisons

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"Rocky DEM simulation speeds up prototype development up to four times when compared to physical tests.”

Matthew Roesner Technical Director

Roesner Pty Ltd


Roesner Pty increases efficiency of fertilizer spreaders

Rocky DEM enabled Roesner Pty to perform virtual prototyping of loading chutes without the need of costly physical testing

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"We have been using Rocky DEM for almost one year and have found it essential to our process: It has proved to be the only one with flexible fiber model coupled with CFD — flow solution and real representation of the particles, being able to analyze our equipment with the exact number of particles and format."

Kon Leung, Ph.D.

Staff Simulation Engineer at BISSELL Homecare, Inc.


BISSELL Validates Effectiveness of New Projects through Testing with Rocky DEM

Discover how BISSELL applies Rocky DEM and ANSYS Fluent simulation in the product development process.

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As our R&D colleagues commissioned more and more DEM simulation over the past few years, we needed to look for new, powerful and easy-to-use software. To help us react more quickly to these needs and work more efficiently, we chose Rocky DEM, a software with comprehensive functionality as well as a mature and proven user interface.”

Lisa Schrader

R&D at Thyssenkrupp


Thyssenkrupp increases transport of particles with Rocky DEM

The company optimizes plants for cement production with particle simulation.

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ROCKY DEM is helping us to improve various processes. The use of simulation tools can quantify the design improvements and gains; this is advantageous because mining uses large equipment that without computer simulation can cost millions for prototype development and testing. Accurate simulation results can advocate for necessary changes and updates, with the assurance of a return on investment.”

Ueld José da Nobrega

Senior Engineer of Maintenance Engineering and Industrial Automation at Vale


ANSYS and ROCKY DEM generate savings for VALE

Vale used Rocky DEM and ANSYS coupling to simulate and analyze the flow of ore

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"The highlight of the Rocky DEM software is certainly its speed and realistic particle shapes. For us, being able to simulate the exact number of particles in the exact same size distributions and shape representations that we have in our experimental studies is the primary benefit to using Rocky DEM.”

Preetanshu Pandey, Ph.D.

Principal Scientist at Bristol-Myers Squibb (BMS)


BMS Simulates over 10 million particles using Rocky DEM

Pharmaceutical company Bristol-Myers Squibb used Rocky DEM Multi-GPU capabilities

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