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

2024/04/05 – Open position as Research assistant

At the Institute of Mechanical Process Engineering and Mechanics (MVM) and the Institute of Applied and Numerical Mathematics (IANM) at the Karlsruhe Institute of Technology (KIT) we are looking for a Research assistant for our team Lattice Boltzmann Research Group (www.lbrg.kit.edu). Within the scope of a research project on the modelling and simulation of particle-laden fluid flows, a full-time position is to be filled temporarily. After familiarisation, remuneration is paid according to TV-L, E 13. There is the possibility of a doctorate.

Besides enjoying scientific problem analysis as well as mathematical and/or process/chemical/mechanical engineering problems and/or computer science using parallel computers (CPU and GPU cluster), we expect you to have good programming skills, initiative, imagination and good communication skills in written and spoken German and English. Great importance is attached to working in a team. 

The Karlsruhe Institute of Technology strives to increase the proportion of women and therefore particularly welcomes applications from women. Severely handicapped applicants will be given preferential consideration if they are equally qualified.

Please send applications with the usual documents, preferably electronically in a pdf file, to

PD Dr. Mathias J. Krause
Karlsruhe Institute of Technology
Lattice Boltzmann Research Group
Street at Forum 8
76131 Karlsruhe


2024/03/08 – LBM Spring School in Heidelberg successfully finished

The executive committee is happy to announce the closing of the 7th LBM Spring School with OpenLB Software Lab. We hosted 57 participants from 13 countries this year. Congratulations to Jakob Scheel from the US for winning our poster award. We are already busy with organizing the next spring schools. The 8th spring school is planned to take place in Marseille, France from May 19-23, 2025. We would like to thank all participants for attending the 7th spring school in Heidelberg and acknowledge the support from our funders.

On behalf of the spring school executive committee (Kerstin Dick, Shota Ito, Mathias J. Krause and Stephan Simonis)

2024/02/23 – New Android App “paint2sim” Released

Paint2sim is a mobile application using a Lattice Boltzmann Method realized by the open-source simulation framework OpenLB. This innovative app allows users to scan hand-drawn domains and visualize 2D fluid flow simulations just-in-time on their mobile devices. Whether you're a student, researcher, or engineer, explore fluid dynamics with an intuitive interface with your fingertips. The app is freely available for download.

For in-depth technical insights, refer to our latest paper, "Just-in-Time Fluid Flow Simulation on Mobile Devices Using OpenVisFlow and OpenLB"

Dennis Teutscher and his team developed the app paint2sim as part of the "teaching4future" project, with funding from the Lattice Boltzmann Research Group at KIT and the Ministry of Science, Research, and Arts of Baden-Württemberg, Germany.

Use Case: Scanning a hand-drawn domain and simulating it on a mobile device

2024/02/20 – LBRG joins kick-off meeting for EU-funded project FALCON

The EU-funded project FALCON (Foreseeing the next generation of Aircraft: hybrid approach using Lattice-boltzmann, experiments and modelling to optimize fluid/struCture interactiONs) has started in January 2024 for a duration of 4 years and is coordinated by the Université d'Aix-Marseille, France. The project has received funding from the European Union’s Horizon Europe research and innovation programme under grant agreement No 101138305. The FALCON partners (from 6 countries: Belgium, Czech Republic, France, Germany, Spain, UK) each bring unique expertise in experimental and numerical approaches in fluid and solid mechanics:
Aix-Marseille University,
Centre national de la recherche scientifique,
Centrale Méditerranée,
Karlsruhe Institute of Technology (KIT),
MSC Software,
German Aerospace Center (DLR),
IT4Innovations National Supercomputing Center,

FALCON's goal is to enhance the design capabilities of the European industrial aircraft sector by focusing on fluid–structure interaction (FSI) phenomena to improve the aerodynamic performance of aircraft (unsteady loads). FALCON assembles a unique interdisciplinary environment of fifteen public and private institutions and their affiliated entities (from renowned research institutions to SMEs and aircraft high-tier suppliers and integrators) to cover all the required scientific and know-how expertise. Building upon three industrial test cases and tight links with key European partnerships such as Clean Aviation, FALCON delineates a high-impact/low-risk proposal that will significantly contribute to the digital transformation of the European aircraft supply chain.

The Lattice Boltzmann Research Group (LBRG) participated in the official kick-off meeting for FALCON (see LinkedIn).

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2024/02/12 – Successful Doctoral Colloquium of Nicolas Hafen

Nicolas Hafen successfully passed his doctoral thesis examination.

Congratulations to Nicolas and best wishes from the LBRG Team!

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