Achim Bender M.Sc.
Simulation of Film Evaporation
Contact
bender@ttd.tu-...
work +49 6151 16-22278
fax +49 6151 16-22262
Work
L2|06 217
Peter-Grünberg-Str. 10
64287
Darmstadt
| Since 2015 | Researcher at the Institute for Technical Thermodynamics, TU Darmstadt |
| 2014-2015 | Master Thesis: „Development and Implementation of an Evaporation Model in OpenFOAM“ (TTD, TU Darmstadt) |
| 2013-2015 | M.Sc. Mechanical and Process Engineering, TU Darmstadt |
| 2012-2013 | Non-degree exchange “Aerospace Engineering” at University of Illinois at Urbana Champaign, Illinois, USA |
| 2009-2012 | B.Sc. Mechanical and Process Engineering, TU Darmstadt |
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Awards Poster award of the ProcessNet division „Computational Fluid Dynamics“, Bremen, Germany (2018) |
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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 objective of this work is to describe the evaporation process of multi-component systems on complex surfaces and the influence of deposits theoretically and numerically. Film-dynamics, heat and mass transfer in the liquid film, chemical reactions and the creation of deposits are considered.
In this project 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.
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