At the Institute for the Simulation of Reactive Thermo-Fluid Systems (STFS), we develop models and conduct simulations of sustainable energy systems.
To power a sustainable world, our research focuses on chemical energy carriers and exploits the potential of renewable fuels such as hydrogen, ammonia, methanol, iron and aluminum. We develop advanced modeling approaches and simulation techniques for chemically reactive laminar and turbulent multicomponent and multiphase flows. We use these simulation techniques to investigate combustion processes on all scales: from the smallest structures of the reaction zone and the formation of nanoparticles in solid fuel flames to the largest scales of of technically relevant combustion chambers.
The work of our research group is characterized by a close connection between fundamental and application-oriented research. Our aim is to understand the physical principles of combustion through direct numerical simulations (DNS) and to combine this knowledge in advanced mathematical models. By coupling these models with scale-resolving large-eddy simulations (LES), we can investigate even very complex practical applications such as aircraft engines, industrial furnaces and chemical reactors.
To achieve our goals, we work closely with colleagues, especially experimentalists, from science and industry.
In our research, we investigate clean energy conversion processes. With simulations on high-performance computers, we gain detailed insights into reactive flows that were unthinkable just a few years ago. In doing so, we bridge the gap between basic research and technical applications.
Science is beautiful — truly beautiful, almost like art.
April 08, 2026
2nd ERCOFTAC Milton van Dyke Competition
I am very honored to be a co-author of our submission to the 2nd ERCOFTAC Milton van Dyke Competition, which has been selected as one of the five finalists. Our contribution combines high-resolution experiments and large-eddy simulations side by side, showing the ignition of a turbulent iron particle-laden jet in a hot co-flow.
CO2-free combustion in real systems
März 02, 2026
New Publication
CO2-free combustion in real systems = honest work, and it matters. (with some thoughts for the next generation of scientists)
Metals in the spotlight
Februar 10, 2026
Topical Review on Emerging Energy Carriers
Over the past years, worldwide research on iron and aluminum has accelerated tremendously. I will share what we have learned so far
HiWi (m/f/x) wanted: AI for Physics / Physics-aware machine learning / Reduced-order modeling / Digital Twin
February 10, 2026
The ECOTWIN team is looking for a student assistant to help us expand our machine learning codebase in Python / JAX.
Three PhD defenses in one week!
Januar 15, 2026
Speechless – that doesn’t happen often
Completing a PhD is a real milestone, and it is a highlight for me as a supervisor as well. Last week, Bich-Diep Nguyen, Tim Jeremy Patrick Karpowski, and Philipp Koob all successfully defended their theses.
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