Research assistant (Postgraduate)

The Department of Mathematics at Technische Universität Darmstadt invites applications for a position as

Research assistant (Postgraduate)

to be filled as of April 15th 2019. The position is available for the duration of up to four years.

Modeling and Analysis (MMA) group, Technische Universität Darmstadt, Germany, and in the Institute of Catalysis Research and Technology at the Karlsruhe Institute of Technology, Germany. The research project is embedded into the Collaborative Research Centre/Transregio 150 "Turbulent, chemically reactive, multi-phase flows near walls" of the German Research Association DFG. The project involves scientific advancement of a flow solver for Direct Numerical Simulations (DNS) of multi-phase flow using the diffuse-interface phase-field method in OpenFOAM – a mature, open source C++ library for computational continuum mechanics. One central objective of the project is the extension and validation of the method for multiple-component miscible fluids. The Mathematical Modeling and Analysis group has extensive expertise and experience with the use, extension and development of OpenFOAM technology. There is a long-standing and successful cooperation with the IKFT, which focuses on the application and validation of the developed simulation programs.

The research focus is on the interaction of droplets with wall films for different miscible systems. Depending on velocity and size of the droplets as well as the film thickness, splashing might happen. Then, secondary droplets form, the composition of which at different splashing conditions is unknown but highly relevant to the guiding measures of the Collaborative Research Centre/Transregio 150. For instance, in internal combustion engines oil films and fuels droplets interact at the cylinder walls. An essential aim of the project is the development, implementation and application of a high-performance and high-fidelity numerical method based on the diffuse-interface phase-field method so as to enable accurate, robust and efficient simulation of droplet-wall interaction in prototypical cases. For validation coordinated experimental studies will be carried out by project partners in the collaborative research centre.

We offer

  • prestigious funded position in interdisciplinary, collaborative environment,
  • funding for 4 years,
  • attractive salary and excellent job perspectives both in academia and industry,
  • excellent computational resources (e.g., access to simulation software, development environment as well as to an high-end workstation with access to high-performance computer clusters,
  • an exciting project with broad scientific impact and industrial relevance, as well as integration into a team of motivated researchers with an interdisciplinary background.



  • Object-Oriented Programming (OOP) in high-level programing languages (favorably with the OpenFOAM C++ library),
  • Basic knowledge of numerical methods (e.g. Finite Difference / Finite Volume Method),
  • Highly motivated, efficient individual,
  • German or English (fluent),
  • Excellent computer skills (Unix, Linux)

Optional (favorably)

  • Basic knowledge in Computational Fluid Dynamics (CFD),
  • Basic knowledge in continuum mechanics, preferably fluid mechanics (advanced university lectures/courses).

Opportunity for further qualification (doctoral dissertation) is given. The fulfillment of the duties likewise enables the scientific qualifications of the candidate.

The Technische Universität Darmstadt intends to increase the number of female employees and encourages female candidates to apply. In case of equal qualifications applicants with a degree of disability of at least 50 or equal will be given preference. Wages and salaries are according to the collective agreements on salary scales, which apply to the Technische Universität Darmstadt (TV-TU Darmstadt). Part-time employment is generally possible.

Applications stating the code number and including the customary documents are sent to the Dean of the Department of Mathematics, Schlossgartenstr. 7, 64289 Darmstadt (Germany), bewerbung [at] (please enclose a single .pdf-file of at most 5 MB). Informal enquires are encouraged and should also be addressed to Dr.-Ing. Holger Marschall, marschall [at], and Dr.-Ing. Martin Wörner, martin.woerner [at] For general questions concerning your application please contact the departmental coordinator Dr. Andreas Mars, Tel. +49 6151 –1621431, personal [at]

Applications via encrypted mail is welcome. Our public PGP-key is available on the website of the department. Please do not submit originals of any documents, as they cannot be sent back after filling the positions. We only consider candidates from the EU or people holding a valid work visa for Germany.

Code No. 100

Published on: March 06, 2019

Application deadline: March 24, 2019