RELAP5-3D
RELAP5-3D is a simulation tool that allows users to model the coupled behavior of a nuclear reactor's coolant system and the reactor core for various operational transients and postulated accidents that might occur in a nuclear reactor. RELAP5-3D (Reactor Excursion and Leak Analysis Program) can be used for reactor safety analysis, reactor design, simulator training of operators, and as an educational tool by universities.