CATHENA Validation in Support of Large Break LOCA Analysis

Abstract

An effort is currently underway to improve the validation of the CATHENA thermalhydraulics code for use in CANDU reactor safety analysis and licensing. As part of this work, a series of RD-12, RD-14, and RD-14M simulations were performed to help qualify CATHENA for large break loss-of-coolant accident analysis. This paper discusses modelled and experimental results from large break loss-of-coolant accident tests conducted in the RD- 12, RD-14, and RD-14M test facilities and how they are used in the validation process.