Georg Kosakowski

Georg Kosakowski is a Senior Scientist at the Paul Scherrer Institute (PSI), Switzerland, within the Nuclear Energy and Safety Research Division. His research focuses on coupled physical and chemical processes in heterogeneous porous media, particularly in the context of nuclear waste repositories. He holds a Dr. rer. nat. from the University of Bonn and a Habilitation from the University of Tübingen. His work emphasizes reactive transport modeling, long-term material evolution (e.g., cement, clays), and numerical risk assessment for nuclear waste storage.

Research interests include the geochemical evolution of repository materials, gas production in waste repositories, and interface reactions between cement and bentonite. He has contributed to over 100 peer-reviewed publications, focusing on topics like coupled multi-phase flow, mineral precipitation/dissolution, and computational methods. His studies often involve collaboration with institutions like Nagra (Switzerland) and Hiroshima University (Japan).

Publications highlight advancements in modeling tools (e.g., OpenGeoSys-Gem, FEniCS-Reaktoro), experimental validation of transport processes, and repository safety assessments. Teaching includes geostatistics at the University of Bern and specialized courses on thermodynamic modeling in Japan.

Labs/Teams: He leads research within the Laboratory for Waste Management at PSI, contributing to Switzerland’s nuclear waste disposal program. His work supports the development of engineered barriers and long-term safety evaluations for geological repositories.