Abstract:

Flownex is a general-purpose thermal-fluid network analysis code used as a tool in the design of the Pebble Bed Modular Reactor. The National Nuclear Regulator requires the use of benchmarks to Verify and Validate (V&V) such a design code. This paper covers the verification and validation of selected fundamental components and aspects in Flownex. Attention is also given to the integration of these components to verify and validate their use in arbitrary structured thermal-fluid networks.