Postdoctoral Research Fellow / Postdoctoral Research Fellowess

Postdoctoral Research Fellow in Aqueous Chemistry and Thermochemical Modelling

100%, Zurich, fixed-term

The Nuclear Safety and Multiphase Flows Laboratory (NS-ECMFL) is a research group in the Department of Mechanical and Process Engineering at ETH Zurich, led by Prof. Dr. Annalisa Manera.

Our lab specializes in both experimental and computational studies of multiphase flows and thermal-hydraulic phenomena in nuclear systems. We develop advanced measurement techniques, perform high-resolution experiments, and conduct multi-scale, multi-physics simulations. Our work aims to improve nuclear reactor safety and efficiency through innovative passive safety systems and detailed analysis of complex fluid dynamics and heat transfer processes.

Project Background

In this context, we invite applications for a Postdoctoral Researcher position to work on an international project focusing on predicting and managing liquid source terms in severe nuclear accidents. This project, where ETH Zurich plays a crucial role, significantly contributes to various research and development aspects of nuclear safety. The aim is to gather essential data on the liquid source term, enhance our understanding of associated phenomena, and develop tools to simulate relevant processes.

In collaboration with PSI, ETH reviews data from previous projects, including leaching tests of Chornobyl's lava in various liquids, as well as contributions to Fukushima-related research projects, particularly regarding thermodynamic data for caesium and strontium compounds.

ETH is also actively engaged in developing and validating new simulation models, which entails reviewing other simulation tools and databases, such as thermodynamic solvers, to further our understanding of liquid speciation and dissolution processes. These efforts are integral to incorporating new models into severe accident (SA) codes, focusing on assessing and validating thermodynamic data to predict the behaviour of fission products like caesium and strontium in liquid phases during accidents.

Job Description

In the context of the project, your duties will involve the following tasks:

• Extension and validation of thermodynamic databases relevant to the modelling of aqueous systems.
• Analyze experimental data to improve the understanding of liquid source term phenomena.
• Develop and validate simulation models, focusing on thermodynamic aspects and geochemical tools to predict fission product behaviour.
• Implement the developed models into simulation codes and algorithms.
• Collaborate closely with project partners from other leading research institutions.
• Present research findings at international conferences and workshops.
• Contribute to the dissemination of project results through various communication channels.
• Work with colleagues in computational modelling and experimental domains to enhance data analysis.

Profile

• Ph.D. in Nuclear Engineering, Physics, Chemical Engineering, or a related field.
• Experience with computational chemistry and simulation tools.
• Prior knowledge of nuclear safety, severe accident analysis, and radioactive material behaviour is an advantage.
• Proficiency in programming languages (C++ and Python).
• Independent, self-driven, creative, and solution-oriented.
• Strong written and verbal communication skills, with a team-player attitude.

With the social and leadership competencies, ETH Zurich has developed a common understanding of a shared work culture. We encourage all candidates to embody these six competencies in their professional approach.

Workplace

ETH Zurich offers a stimulating and dynamic work environment that fosters innovation and collaboration.

We Offer

• Opportunities for professional development and collaboration with leading experts in the field.
• Your job will have an impact: Become part of ETH Zurich, which supports your professional development while actively contributing to positive societal change.
• Numerous benefits, including public transport season tickets and car sharing, a variety of sports offered by the ASVZ, childcare options, and attractive pension benefits.

We Value Diversity and Sustainability

In line with our values, ETH Zurich encourages an inclusive culture. We promote equality of opportunity, value diversity, and nurture a working and learning environment that respects the rights and dignity of all our staff and students. For more details on how we foster a fair and open environment, please visit our Equal Opportunities and Diversity website. Sustainability is a core value for us, and we are continuously striving towards a climate-neutral future.

Curious? So Are We.

We look forward to receiving your online application using the form below.

Please note that only applications matching the job profile will be considered.

For further information about the Laboratory of Nuclear Safety and Multiphase Flows, please visit our website. Questions regarding the position should be directed to Dr. Sergii Nichenko at +41 56 310 22 96 or via email at snichenko@ethz.ch (please do not submit applications here).

About ETH Zurich

ETH Zurich is one of the world’s leading universities specialising in science and technology. Renowned for our excellent education, cutting-edge fundamental research, and direct transfer of new knowledge into society, we host over 30,000 individuals from more than 120 countries. Our university promotes independent thinking and inspires excellence in an environment that fosters collaboration. Located in the heart of Europe, we connect globally to develop solutions for today's challenges and those of the future.