Weimin Ma

Weimin Ma is a Professor in Nuclear Power Safety at the Department of Physics at KTH Royal Institute of Technology, and Deputy Head of the Division of Nuclear Science and Engineering. His work focuses on nuclear safety across existing and future reactor designs, addressing challenges in accident prevention and mitigation.

Research Interests: Nuclear power safety, multiphase/multi-physics accident analysis, severe accident management, reactor pressure vessel integrity under core melt attack, and safety of advanced reactor technologies like lead-cooled fast reactors (LFRs) and small modular reactors (SMRs). His group develops experimental methods (e.g., simulant melt studies) and computational tools (e.g., MELCOR coupling) to improve accident modeling and risk assessment.

Key Research Areas: Melt coolant interactions, steam explosions, debris bed coolability, thermal-hydraulic phenomena, and best-estimate plus uncertainty (BEPU) methods. Recent studies include turbulence modeling in melt pools, surrogate models for safety analysis, and experimental validation of severe accident scenarios.

Publications highlight contributions to understanding core meltdown accidents, coolant interaction dynamics, and safety analyses for both current and next-generation reactors. Collaborations include international projects like OECD/ROSAU and SARNET networks.

Teaching: Courses on nuclear safety, thermal-hydraulics, and sustainable energy engineering, emphasizing practical skills through compact reactor simulators and project-based learning.