Improvements and applications of COBRA-TF for stand-alone and coupled LWR safety analyses

Abstract

The advanced thermal-hydraulic subchannel code COBRA-TF has been recently improved and applied for stand-alone and coupled LWR core calculations at the Pennsylvania State University in cooperation with AREVA NP GmbH, Germany and the Technical University of Madrid. To enable COBRA-TF for academic and industrial applications including safety margins evaluations and LWR core design analyses, the code programming, numerics, and basic models were revised and substantially improved. The code has undergone through an extensive validation, verification, and qualification program.