Welcome to the Lattice Boltzmann Research Group

The Lattice Boltzmann Research Group (LBRG) is an interdisciplinary research group that aims to take advantage of novel mathematical modeling strategies and numerical methods to enable large-scale simulations and optimal control of fluid flows for applications in process engineering. The LBRG aims at a better fundamental understanding of suspensions in general and for the improvement of mechanical processes and medical treatments. In particular the LBRG designs and uses models, algorithms, and open source simulation tools such as OpenLB, always taking advantage of modern high performance computers for the simulation of, for example:

  • Particulate fluid flows
  • Thermal flows

  • Turbulent flows

  • Material transport and chemical reactive flows

  • Light transport

  • Fluid-structure interaction

  • Flows in porous media and complex geometries

The LBRG’s teaching and education concept is project- and research-oriented, offering for example basic programming courses, lectures on parallel computing, software tutorials, and advanced seminars on particular fluid flow simulations as well as optimal control theory.
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Latest News

Spring_School_Liverpool2026LBRG
27/03/26 - The Spring School 2026 in Liverpool (UK) was a success

What a great week at the University of Liverpool! Bringing together the LBM-community, with 42 participants from 11 countries for our 9th Spring School on Lattice Boltzmann Methods. We would like to thank our friends at University of Liverpool, John Bridgeman, Davide Dapelo and Mohaddeseh Mousavi Nezhad for hosting this year's Spring School, which allowed us to introduce and help so many people to the methods, theory and best practices of LBM. The spring school provides both an environment for learning and understanding LBM, but also for developing new and interesting research problems. Also a big thank you to Shota Ito, Tikhon Riazantsev, Mathias J. Krause and Stephan Simonis for organizing this year's OpenLB spring school.


This years poster session allowed insights into the research of the LBM-community, showing off the huge range of different problems that are tackled using LBM. We would also like to congratulate Maxence Desnoyers on winning this years poster session with his poster on a "Numerical Framework to Study Structural Wetting Properties of Proton Exchange Membrance Fuel Cell Catalyst Layers".


We would also like to thank this year’s invited speakers: Fedor Bukreev, Isabelle Cheylan, Davide Dapelo, Shota Ito, Florian Kaiser, Mathias J. Krause, Timm Krüger, Adrian Kummerländer, Halim Kusumaatmaja, Tim Reis, and Stephan Simonis.


The preparations for next years spring school are already underway. It will take place from April 5-9 2027 in Erlangen, Germany. We are looking forward to seeing you there! Until then, stay tuned and happy research!

Six men stand in a bright, modern atrium with large windows and a sculpture in the center.LBRG
23/03/26 - Visit of Prof.Dr. Siddhartha Mishra for the KIT Workshop: Data-driven methods for PDEs

Last week, the LBRG team participated in the Workshop on Data-driven methods for PDEs at the Karlsruher Institut für Technologie (KIT) Department of Mathematics.

We were honored to have Prof. Dr. Siddhartha Mishra, Head of the Computational and Applied Mathematics Laboratory (Camlab) and part of the ETH AI Center at ETH Zürich, deliver the opening presentation, titled "AI for Efficient Simulations for PDEs". We also had the opportunity to enjoy lunch together, where we exchanged research experiences and ideas.

It is really inspiring to see how the combination of data-driven techniques, efficient numerical methods, and the constantly increasing computational power of HPC clusters is redefining the limits of scientific simulation.

Stephan Simonis and Johannes Grafen presented some insights into their ongoing research on 'Exploratory computation of statistical Navier-Stokes solutions', during the poster session. The project is conducted in close collaboration with Prof. Dr. Siddhartha Mishra and his team. For this project Stephan Simonis is supported by the PRIME programme of the German Academic Exchange Service (DAAD Deutscher Akademischer Austauschdienst), with funds from the Federal Ministry of Research, Technology and Space (Bundesministerium für Forschung, Technologie und Raumfahrt). (https://lnkd.in/dVYktp_K)

We sincerely thank Benjamin Unger, Martin Frank, Sebastian Krumscheid, Roland Maier, Nathalie Sonnefeld and Mathias Trabs for the organization of this workshop. It was a fantastic experience for the whole team!

Group of students seated around a large table in a classroom with laptops, projector, and whiteboard.LBRG
16/03/2026 - LBRG Student presentations

Our weekly LBRG Seminar provides a stage for our HiWis and thesis students to showcase their work. We recently enjoyed a fantastic round of presentations from our student members:

- Luis Wittich, who currently working on his Master's thesis and presented the interim state. His thesis evolves around wall-modelled LES of the Taylor-Couette flow.


- Michael Grinschewski, one of our student assistants, is developing a specialized indicator function to define airfoil profiles in OpenLB.


- Maren Weber, also a student assistant, who manages our group’s digital presence, from LinkedIn posts to our annual LBRG Advent Calendar.

Thanks to our student members for the great presentations!