Multiphysics simulation of fast transients with the FINIX fuel behaviour module Timo Ikonen, Elina Syrjälahti, Ville Valtavirta, Henri Loukusa, Jaakko Leppänen and Ville Tulkki EPJ Nuclear Sci. Technol., 2 (2016) 37 Published online: 08 September 2016 DOI: 10.1051/epjn/2016032