Moritz Mildenberger M.Sc.

Simulation of Film Evaporation


work +49 6151 16-22271
fax +49 6151 16-22262

Work L2|06 210
Alarich-Weiss-Straße 10
64287 Darmstadt

Since 2020 Researcher at the Institute for Technical Thermodynamics, TU Darmstadt
2019-2020 Master thesis: “Computational investigations of thermal loads of aerial vehicles”, TU Darmstadt & MBDA Deutschland GmbH
2018 Study abroad at the Norwegian University of Science and Technology (NTNU), Trondheim, Norway
2017-2020 M.Sc. Mechanical and Process Engineering, TU Darmstadt
2017 Bachelor thesis: “Numerical simulation of natural convection in enclousures”, TU Darmstadt
2014-2017 B.Sc. Mechanical and Process Engineering, TU Darmstadt

Liquid fuels are known to form wall films inside an internal combustion engine under certain conditions. Highly volatile fuel components evaporate more quickly. The remaining components can create deposits on the wall through cross-linking or chemical reactions. These deposits impair the engine efficiency and increase the emission of pollutants. Deposits can also occur through evaporation in process engineering or in urea injection systems for exhaust gas treatment. The process sequence and the dependence on different parameters are unknown.

The starting point of this project are open questions regarding the complex phenomena and interactions in context of evaporation and formation of deposits in multi-component liquid films. Thereby the influence of different phenomena (wall heating, wall structure, external gas flow, wetted area) on film dynamic, evaporation and formation of deposits are relevant. This Project includes the development and usage of theoretical and numerical models. Therefore, the various physical processes involved in evaporation and deposit formation of turbulent multi-component liquid films are considered separately from each other in a first step and investigated with appropriate methods. Asymptotic methods (Long-Wave-Theory) as well as numerical methods (Volume-of-Fluid Method and Arbitrary-Lagrangian-Eulerian-Method) are used. Through the combination of the different models, it becomes possible to identify the influence of various parameters (such as Temperature, turbulent flow, liquid composition) on evaporation and deposit formation. From this a better understanding of the process can be deduced.

Webpage of SFB/TRR150