Influence of Modelling Options in RELAP5/SCDAPSIM and MAAP4 Computer Codes on Core Melt Progression and Reactor Pressure Vessel Integrity

<table>RELAP5/SCDAPSIM nodalization for modelling natural circulation.</table>

Science and Technology of Nuclear Installations

Figure 3: Influence of Modelling Options in RELAP5/SCDAPSIM and MAAP4 Computer Codes on Core Melt Progression and Reactor Pressure Vessel Integrity 