The Paul Scherrer Institute PSI is the largest research institute for natural and engineering sciences within Switzerland. We perform cutting-edge research in the fields of future technologies, energy and climate, health innovation and fundamentals of nature. By performing fundamental and applied research, we work on sustainable solutions for major challenges facing society, science and economy. PSI is committed to the training of future generations. Therefore, about one quarter of our staff are post-docs, post-graduates or apprentices. Altogether, PSI employs 2200 people. 
For the Laboratory for Reactor Physics and Thermal-Hydraulics we are looking for a
Postdoctoral Fellow
3D Thermo-mechanical Solver Development for Nuclear Fuels
Your tasks
We are looking for a person to contribute to our team in the area of fuel behaviour modelling and safety analysis for nuclear fuels in the context of the OperaHPC European Project. Your tasks will include:

  • Development and implementation of new methods and models (oxidation, hydrogen transport) in the 3D fuel behaviour code OFFBEAT
  • Development of an data exchange interface between the Falcon and OFFBEAT fuel behaviour codes
  • Collaboration with neutronics and thermal-hydraulics specialists
  • Verification and validation of the Falcon and OFFBEAT fuel behaviour codes
  • Presentation of research results in the form of peer-reviewed publications, conference participations and preparation of technical reports
Your profile
Your have a PhD degree in nuclear or mechanical engineering, physics and/or applied mathematics. Ideally you also have a solid background in nuclear engineering, including thermal-hydraulics, neutron transport and neutron kinetics, with some experience in nuclear fuel behaviour simulation codes. You have a solid background in computational modelling, solution of PDEs and numerical methods using the OpenFOAM finite-volume C++ framework. We are willing to consider candidates with limited nuclear background provided they can demonstrate significant development experience using OpenFOAM and a desire to explore applications of OpenFOAM beyond the realm of traditional CFD.
You are fluent in spoken and written English. Proficiency in German is beneficial.
We offer
Our institution is based on an interdisciplinary, innovative and dynamic collaboration. You will profit from a systematic training on the job, in addition to personal development possibilities and our pronounced vocational training culture. If you wish to optimally combine work and family life or other personal interests, we are able to support you with our modern employment conditions and the on-site infrastructure. 

Your employment contract is limited to 2 years.

For further information, please contact Ivor Clifford, phone +41 56 310 34 68.

Please submit your application online by 31 January 2023 (including list of publications and addresses of referees) for the position as a Postdoctoral Fellow (index no. 4103-02).

Paul Scherrer Institut, Human Resources Management, Serdal Varol, 5232 Villigen PSI, Switzerland