RWTH Aachen - Chair of Fluid Mechanics and Institute of Aerodynamics
The Chair of Fluid Mechanics and Institute of Aerodynamics belong to the Faculty of Mechanical Engineering of the RWTH Aachen University. The institute is composed of the experimental and numerical divisions and the biomedical fluid dynamics laboratory.
With approx. 30 publicly and industrially funded research projects and an annual level of expenditure of around 2.0 Mio. , the Chair of Fluid Mechanics and Institute of Aerodynamics belong to the strongest university research institutes in the field of fluid dynamics in Germany.
The research group
Newly installed research group within the Emmy Noether program of the German Research Foundation (DFG): Separation control with Air Jet Vortex Generator arrays in transonic and supersonic flow.
Shock-induced flow separation strongly influences the aerodynamic behavior of many applications in aerospace transportation. The ubiquity and strong influence of these flows motivated great efforts to develop methods that reduce the detrimental effects of separation. This project investigates a promising and very versatile technique: Air Jet Vortex Generators (AJVGs). An array of small continuous air jets inserts vortices into the boundary layer. The vortices entrain high-momentum fluid and increase turbulent mixing, which leads to smaller separation zones and a reduction of the associated unsteadiness. The system is relatively simple, yet more flexible than mechanical devices. Efficient control requires to understand the governing mechanisms in the uncontrolled flow field. This is the first main project goal. The second objective is to analyze the separation-control mechanisms and parameters of Air-Jet Vortex-Generator arrays. On this basis, the next aims are optimized control setups for more complex models, simulating the relevant effects for transonic airfoils and inlets of supersonic air-breathing engines. The last goal is to expand separation control towards higher speeds important for novel space-transportation concepts and to assess the Mach number influence on the control concept. To get access to data of a quality that could not be achieved before, and to get a multilayered access to the problem, the group approaches these tasks with closely intertwined experimental and numerical methods.
You will contribute to the setup and validation of the new PIV system. In the beginning of the project, you will design the experimental models in exchange with the numerical simulations that are also carried out within the research group. Your will create experimental setups in the wind tunnel and carry out measurement campaigns independently as well as in a team. You will carry out the analysis, interpretation, and visualization of the experimental results in close collaboration with the numerical branch of the research group. Also the supervision of students carrying out their bachelor and master theses within the research group will be among your responsibilities. Furthermore, you will write research reports and publications in peer-reviewed journals, and you will present your research results in national and international conferences. The aim is, that your results and publications are of sufficiently high quality to become part of your doctoral thesis.
You hold a university degree (Master of Science or comparable) in the fields of mechanical or aerospace engineering with a focus on fluid dynamics with above-average grades.
You are curious and interested in scientific research. You have ambition to work in academia and are inspired by your research subject. You carry out your work thoroughly and independently. Furthermore, you are motivated to collaborate closely within this experimental/numerical research group as well as with project partners.
You have already gained experience in setting up and carrying out wind-tunnel experiments, as well as in data analysis. Experience with Particle-Image Velocimetry (PIV) is a definite plus. You have extensive prior knowledge in fluid mechanics, especially in the areas of compressible flow and turbulence. You have excellent English language skills, oral and written, and you have software developing knowledge, particularly with Matlab.
What we offer:
The position is for 18 months and is to be filled as soon as possible. Depending on the positive evaluation of your doctoral project a prolongation of the contract for another 18 months is possible. This is a full-time position.
The successful candidate has the opportunity to pursue a doctoral degree.
The salary corresponds to level TV-L EG 13.
RWTH Aachen University is certified as a "Family-Friendly University". We particularly welcome and encourage applications from women, disabled persons and ethnic minority groups, recognizing they are underrepresented across RWTH Aachen University. The principles of fair and open competition apply and appointments will be made on merit.
Please send your application by July 14, 2017 to
Chair of Fluid Mechanics and
Institute of Aerodynamics
Dr.-Ing. Anne-Marie Schreyer
You can also send your application via email to firstname.lastname@example.org. Please note, however, that communication via unencrypted e-mail poses a threat to confidentiality as it is potentially vulnerable to unauthorized access by third parties.