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What is LAMMPS?

LAMMPS, an acronym for Large-scale Atomic/Molecular Massively Parallel Simulator, is an advanced molecular dynamics software specifically designed for simulating materials. It can effectively model a variety of particle ensembles in different phases, including liquids, solids, and gases, and supports a wide array of systems such as atomic, polymeric, biological, solid-state, granular, and more, by employing numerous interatomic potentials, force fields, and boundary conditions. Tailored for both two-dimensional and three-dimensional simulations, LAMMPS is capable of managing systems that range from a few particles to billions, providing efficient operation on parallel computing platforms while remaining accessible for users looking to modify or expand its capabilities. The software includes potentials suitable for a range of solid-state materials, including metals and semiconductors, as well as softer materials like biomolecules and polymers, and accommodates both coarse-grained and mesoscopic systems. Moreover, LAMMPS not only excels in modeling atomic interactions but also serves as a flexible parallel particle simulator that can be applied across different scales, such as atomic, mesoscopic, or continuum, thereby establishing itself as an essential tool in the field of computational materials science. Its versatility and efficiency make it a popular choice for researchers seeking to explore complex material behaviors through simulation.

What is Ansys Rocky?

Ansys Rocky is a high-performance particle simulation platform that applies the discrete element method to model the behavior of granular materials, powders, fibers, and other particulate systems. Developed for engineering and industrial applications, the software enables users to study particle interactions with exceptional detail and realism. Ansys Rocky supports realistic particle geometries, including non-spherical shapes, flexible and rigid fibers, 2D shells, and custom particle structures that closely represent real-world materials. Its multi-GPU solver architecture significantly accelerates simulation performance, making it possible to analyze large particle populations and highly complex systems efficiently. The platform includes advanced physical modeling capabilities such as wear prediction, breakage analysis, cohesion modeling, particle collision behavior, and material degradation studies. Engineers can integrate Rocky with computational fluid dynamics and finite element analysis tools to create multiphysics simulations that account for fluid flow, structural interactions, and particle dynamics simultaneously. The software also supports multibody dynamics, 3D scan imports, automated workflows, and customizable simulation scripting. Industries such as mining, pharmaceuticals, food processing, manufacturing, agriculture, chemicals, and consumer products use Ansys Rocky to improve equipment design and optimize operational processes. By reducing dependence on physical testing, organizations can evaluate design alternatives more quickly and lower development costs. Recent enhancements include engineering copilot functionality, expanded multiphysics coupling, improved GPU performance, and advanced automation features that further increase simulation efficiency.

Media

Media

Integrations Supported

Ansys Mechanical

Integrations Supported

Ansys Mechanical

API Availability

Has API

API Availability

Has API

Pricing Information

Free
Free Trial Offered?
Free Version

Pricing Information

Pricing not provided.
Free Trial Offered?
Free Version

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Company Facts

Organization Name

LAMMPS

Company Location

United States

Company Website

www.lammps.org

Company Facts

Organization Name

Ansys

Date Founded

1970

Company Location

United States

Company Website

www.ansys.com/products/fluids/ansys-rocky

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