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Christiane Schlawitschek M.Sc.

Simulation of Drop Impact and Evaporation

Contact

Work Peter-Grünberg-Str. 10
64287 Darmstadt

2019 Best Poster Award of the PrcessNet division “Heat and Mass Transfer”, Essen, Germany
Since 2014 Researcher at the Institute for Technical Thermodynamics, TU Darmstadt
2014 Master's thesis: “Electric field driven separation of oil-water mixtures: Model development” (Process System Technology, BTU Cottbus – Senftenberg)
2012-2014 M.Sc. Process Engineering – Process and Plant Technology, BTU Cottbus – Senftenberg
2007-2012 B.Sc. Environmental Engineering, BTU Cottbus

Subproject C1: Numerical simulation of the transport processes during drop impingement onto heated walls with special consideration of the evaporating three-phase contact line

When a liquid droplet impinges on a hot wall, the fluid dynamic and thermodynamic processes in the vicinity of the contact line play a significant role. The contact line defines the boundary between liquid, gas and wall.

If the fluid approaches the critical state, the standard concept of an infinitely thin phase boundary between liquid and vapor is no longer valid. Therefore the modeling of the physical processes has to be optimized for the changed conditions.

The goal of the proposed project is to develop a comprehensive theoretical and numerical description of the dynamic processes occurring at a vaporizing contact line occurring during droplet impact. The local nano- and micro-phenomena have to be implemented in the VOF-Code (Volume Of Fluid) so that a drop impact can be simulated on a hot, dry or wetted surface. In particular the procedure of spreading, coalescence and disintegration of the film have to be modeled in physically correct way.

SFB-TRR 75: Droplet Dynamics Under Extreme Ambient Conditions

Visualization of an advancing drop with cut through the substrate
Visualization of an advancing drop with cut through the substrate
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