Research Assistant

Paygrade E13 Working Hours 100% (part-time possible) Institution Institute of Physics, ForWind - Center for Wind Energy Research (School V of Mathematics and Science) Location Oldenburg (Old) Application Deadline 12.01.2025 First day of work As soon as possible Limited until 31.12.2028 About us Wind energy research at the Carl von Ossietzky Universität Oldenburg is internationally recognized through its integration into ForWind - Center for Wind Energy Research, a collaboration among the Universities of Oldenburg, Hannover, and Bremen, and by being part of the National Wind Energy Research Alliance. In Oldenburg, 50 researchers from physics, meteorology, and engineering work together on fundamental and applied research questions in the state-of-the-art Research Laboratory for Turbulence and Wind Energy Systems. Our mission is to advance the understanding of wind as a complex flow system with a focus on its interaction with wind turbines, providing essential insights to meet the global demand for renewable energy. We employ a multidisciplinary approach that includes free-field measurements, HPC-based numerical simulations, and laboratory experiments. Oldenburg is particularly renowned for its unique large wind tunnel with an active grid and leading expertise in developing laboratory-scale turbines. Combined with modern measurement methods, these facilities offer ideal conditions for addressing real-world wind energy challenges under controlled laboratory settings. The position to be filled is part of the second phase of the Collaborative Research Center 1463, "Integrated Design and Operation Methodology for Offshore Megastructures", funded by the German Research foundation (DFG). The goal of this collaborative project is to model the entire lifecycle of offshore wind turbines--construction, operation, and decommissioning--within a comprehensive digital twin framework. Your tasks As a Research Associate in our subproject of the CRC 1463 you will reproduce the wind conditions of the future offshore wind turbine megastructures in the laboratory and analyze the wake dynamics and turbine loads. These megastructures partly operate at altitudes above the turbulent boundary layer reaching into the higher quasi-laminar winds. Such laminar-turbulent inflow conditions are scarcely studied and challenge the assumptions underlying most wind and turbine models. Using extensive experiments with two laboratory turbines in the large Oldenburg wind tunnel, you will build on a flow model developed during the first funding phase. Currently, this model reproduces the small scales of the fractal laminar-turbulent interface. In the next phase, the model should also capture larger scales corresponding to laminar-turbulent flow patterns, such as those in turbine wakes. The ultimate goal is to apply this enhanced model to generate numerical wind fields that will serve as inputs for the digital twin of a megastructure turbine, developed within CRC 1463. Job description This project builds upon existing in-house modeling of wind fields for a digital twin turbine, utilizing the fractal properties of laminar-turbulent wind interfaces and a wind tunnel experiment fully set up and tested. Your key responsibilities will be: Conduct wind tunnel experiments with laboratory turbines to measure wake flows and assess the loads of a downstream turbine. Utilize advanced experimental tools such as the active grids in the large Oldenburg wind tunnel to simulate realistic wind conditions and Perform high-resolution measurement methods, including Hot-Wire Anemometry, Laser Doppler Anemometry (LDA), and Particle Image Velocimetry (PIV). Extend existing in-house wind field models (based on stochastic differential equations such as Langevin or Fokker-Planck types). Integrate novel approaches, e.g., directed percolation, into numerical wind field generation. Collaborate within a research consortium to enhance digital twin capabilities for wind energy systems. Publish findings in peer-reviewed journals and present at conferences. Supervise Bachelor's and Master's theses. Engage in teaching activities and support grant proposal preparation. Your profile Requirements for employment include: a qualifying university master's degree in physics, engineering, meteorology, or a comparable field. Strong knowledge of fluid dynamics or nonlinear systems Experience in programming with Matlab or Python Proficiency in spoken and written English. Desired (but not mandatory) qualifications are: Familiarity with experimental techniques and modeling of flows, especially in the context of turbulence transition. Expertise in optical flow measurement methods such as PIV Enthusiasm for designing new experiments. Willingness to learn and advance methods in stochastic processes and spatio-temporal analysis. German language skills. If you meet these qualifications and are eager We offer We offer globally unique laboratory infrastructure for wind energy research and a young, interdisciplinary working group of physicists, engineers, and meteorologists. By working with the wind tunnel, you will become part of a dynamic and supportive team of experimenters, while receiving close supervision from a senior researcher for data analysis. You will be based in the WindLab--one of the university's most modern office and laboratory spaces--while also having the opportunity to work flexibly and remotely. The position provides an excellent opportunity for academic advancement (PhD), supported by specialized seminars, workshops, and meetings provided by: Collaborative Research Centre 1463 Offshore Megastructures ForWind and Fraunhofer IWES in Oldenburg, european academy of wind energy, e.g. PhD Seminar Our group cares for a family-friendly working environment and the university offers a family service centre and children's daycare on campus. Our standards The University of Oldenburg is dedicated to increase the percentage of female employees in the field of science. Therefore, female candidates are strongly encouraged to apply. In accordance to § 21 Section 3 NHG, female candidates with equal qualifications will be preferentially considered. Applicants with disabilities will be given preference in case of equal qualification. Further information Further information is available about ForWind at the working group and the CRC 1436 Contact: For questions regarding this job opportunity, please contact Prof. Kerstin Avila by email at kerstin.avila@uni-oldenburg.de. Apply now Please submit your application via e-amil by 12.01.2025 to Prof. Kerstin Avila (mail to application.tucs@uol.de) Please submit your application electronically as one PDF file to University of Oldenburg, Faculty V, Institute of Physics, ForWind - Center for Wind Energy Research, Research Group Fundamentals of Turbulence and Complex Systems, Prof. Dr. Kerstin Avila, Küpkersweg 70, 26129 Oldenburg, Germany and include reference # SFB-TuCS-PhD. The pdf file must include: A letter motivating your application. Curriculum vitae Grade transcripts and BSc/MSc diploma Employment references, if available A second PDF file containing your Master Thesis or relevant research papers (if available) is an optional attachment. Elektrotechnik, Elektronik Geowissenschaften Physik Doktorand, Doktorandin Wissenschaftlicher Mitarbeiter, wissenschaftliche Mitarbeiterin Lehre & Forschung, Wissenschaft Universität Teilzeit Vollzeit