Welcome to RELAP5 Thermal-Hydraulic Safety Analysis Software Website

Upcoming Workshops

Click here for our calendar of upcoming workshops and events

RELSIM

Introducing a new addition to the RELAP/SCDAPSIM family RELSIM - Interactive Accident Analysis and Simulation System Click here to view additional information on RELSIM.

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To gain exclusive access to papers and RELAP5 Demos, along with many other items, please register for an account on the website.