Business Area II: Flow Simulation Engines

High performance open source simulation engines for particle and fluid flow.

DCS runs the platform. We are committed to deliver excellent open source simulation engines, namely the DEM engines LIGGGHTS® and the CFD-DEM engines CFDEM®coupling. Both are distributed under open source license (GPL). The open-source license implies that your investments into our software are protected - further usage is not restricted, including for commercial purpose.

Excellence in Computational Flow Modelling

We are committed to providing a suite of numerical models for fluid flow and particulate flows, to a degree which reflects both the necessary complexity to extract the physical core phenomenon and the necessary simplicity to allow large-scale simulations. We follow Albert Einstein, who said "Everything should be made as simple as possible, but no simpler". A solid background in fluid mechanics and particulate flow is the backbone for our modelling activities with LIGGGHTS® and CFDEM®coupling.

Excellence in Open Source Software Development

Developing software for numerical simulation naturally involves software development. The open source license means we have nothing to hide, and that our codes can be trusted. The version history of the codes and all decisions we make can be inspected, reviewed and criticized. Regular feedback from a worldwide community of users and experts from a variety of fields are an important input to improve our codes in terms of mathematical/physical validity and from a computer science point of view. This is all to make sure our codes are the high-performance cutting edge simulation tools you expect them to be.

LIGGGHTS® and CFDEM®coupling are available as free, academic versions on We offer a variety of products and services around LIGGGHTS® and CFDEM®coupling. Especially, premium commercial support versions for industrial users are avaliable. For examples and showcases what our simulation technology can do for your industry, see here