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Secretariat – Math Department

Institute for Applied and Numerical Mathematics 2
Building 20.30 Room 3.012

Englerstraße 2
D-76131 Karlsruhe

Find us on the Campus Plan

Office hours:
Mon. - Thu.: 10:00-11:30

Tel.: +49 721 608 42680

E-mail: contact@lbrg.kit.edu

Secretariat – Process Engineering Department

Institute for Mechanical Process Engineering and Mechanics
Building 30.70 Room 205

Straße am Forum 8
D-76131 Karlsruhe

Find us on the Campus Plan

Office hours:
Mon. - Fri.: 9:00-12:00

Tel.: +49 721 608 42401

E-mail: contact@lbrg.kit.edu

Welcome to the Lattice Boltzmann Research Group

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

  • 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. Read more

Latest News

2020/12/19 – OpenLB Overview Paper Published

We are very happy to announce that we have just published our new OpenLB Overview Paper. You can find it on pages 258-288 in volume 81 of Computers & Mathematics with Applications. This paper summarizes the findings of the research that was conducted with OpenLB and gives a brief introduction to the underlying concepts as well as the design of the parallel data structure. It is a great read for newcomers as well as seasoned OpenLB users.
The paper can be viewed and downloaded here.

2020/11/18 – OpenLB release 1.4 available

Read more on the OpenLB website

2020/11/12 – OpenLB Community YouTube Channel Update

We have released two new Videos on our OpenLB YouTube Channel. The first Video is about a 3D simulation of blood flowing through the human aorta. The second one visualizes phase separation in 3D.

For further information please visit the corresponding show case:
Blood Flow Simulation
Phase Separation

2020/07/31 – OpenLB paves the way to „overnight“ near-wall-modeled large eddy simulations

Marc In a collaboration of the Lattice Boltzmann Research Group (LBRG) at the Karlsruhe Institute of Technology (KIT) and the Institute of Reactive Flows and Diagnostics of the department of Mechanical Engineering (RSM) at the Technical University of Darmstadt, the capabilities of two open source near-wall-modeled large eddy simulation (NWM-LES) approaches were investigated to predict complex turbulent flows relevant to internal combustion (IC) engines.

Therefore, OpenLB was compared to the commonly applied open source tool OpenFOAM, using a highly precise particle image velocimetry measurement as reference. The comparison covers prediction accuracy, computational costs and ease of use.

The performance results show that the OpenLB approach is on average 32 times faster than the OpenFOAM implementation for the tested configurations. The faster calculation speed for NWM-LES using the lattice Boltzmann method implementation in OpenLB is advantageous to address industrial applications and to enable "overnight" calculations that previously took weeks.

Checkout our recent publication for more details.

2020/07/06 – How face masks and ventilation of enclosed spaces can protect against infectious aerosols

KIT researchers are investigating the formation, detection, distribution and separation of gas-borne particles and droplets as well as the effectiveness of filters. Using simulations, they analyze aerosols, their distribution and deposition in rooms, filters and the human respiratory tract.
Read more
Read more (German Version)

2020/07/01 – Hiwi Job Available (C++ Programming) Read more

2020/06/05 – New team member Mathilde Wu

She is working on implementing a virtual laboratory as part of the “Teaching4Future” project, in order for students to visualize and interact in VR/AR with fluid flow simulation results. She is working in the LBRG of Dr. Mathias. J. Krause. Read more

2020/05/12 – LBRG student member Marc Siodlaczek wins award for the best simulative bachelor's thesis 2019

Marc The bachelor's thesis with the title "Evaluation of the accuracy of the thermal Lattice Boltzmann method in the transition to turbulent flow", which was supervised by the LBRG, was awarded with the prize for the best simulative Bachelor's thesis by the VM-Verein.

2020/05/01 – New project „Potential for damage to fruits“ funded by BMWi via AiF/FEI starts

The research centers TU Berlin (Institute for Food Technology and Food Chemistry, Department of Food Biotechnology and Food Process Engineering) and KIT (Lattice Boltzmann Research Group) cooperate to determine the potential damage to fruits in fruit mixtures during processing. Read more

2020/04/02 – Project “Virtual Collaboration Laboratories“ funded by the state

Within the project, the team headed by Dr. Mathias J. Krause consisting of mathematicians and engineers from the Mannheim University of Applied Sciences (Prof. Dr. M. Rädle) and the Karlsruhe Institute of Technology (Prof. Dr. W. Dörfler, Prof. Dr.-Ing. H. Nirschl) is making existing VR/AR hardware technologies available for teaching to enable a modern education of students in the natural and engineering sciences.
It is one of five projects that are supported by the Ministry of Science of the State of Baden-Württemberg with funds from the digital@bw digitization strategy.

2020/03/13 – Spring School 2020 successfully finished

LBM Spring School 2020 The executive committee announces the closing of the third LBM Spring School with OpenLB Software Lab. We were happy to host 60 participants from nine countries, including five invited speakers in Berlin, Germany. This year’s poster award goes to Dominik Wilde et al. from the University of Siegen, Germany.
Next year, the 5th spring school (https://www.openlb.net/spring-school-2021/) in planned to take place at the University of Greenwich in England/UK form 2021 May 31st to June 4th.

On behalf of the spring school executive committee, Nicolas Hafen, Mathias J. Krause, Harald Kruggel-Emden, Christopher McHardy, Cornelia Rauh, Holger Stark, Robin Trunk

MORE NEWS: Read more