FLOMIX-R: Fluid mixing and flow distribution in the reactor circuit

• Unité de recherche: PCRD EU
• Numéro de projet: 01.0168
• Titre du projet anglais: FLOMIX-R: Fluid mixing and flow distribution in the reactor circuit

Mots-clé (Anglais)

Nuclear Fission; Radiation Protection; Safety

Autre Numéro de projet (Anglais)

EU project number: FIKS-2001-00197

Programme de recherche (Anglais)

EU-programme: 5. Frame Research Programme - 5.5.2 Nuclear fission

Description succincte (Anglais)

See abstract

Résumé des résultats (Abstract) (Anglais)

The proposed work aims at enhancing the database and improving calculational modelling of fluid mixing and flow distribution phenomena in the PWR primary circuit. These phenomena are important for resolution of boron dilution and steam line break accident issues and for assessing the thermal loading of the primary components.
Mixing is the most important mitigate mechanism against reactivity insertion due to boron dilution or primary circuit overcooling as well as of pressurised thermal shock due to cold emergency cooling water injection. Understanding of the thermal loading is a critical issue for the plant life time-management.
The proposed work includes a well-defined set of mixing experiments in various flow-mixing facilities and justifying the computational fluid dynamic s models for these applications.

Références bases de données (Anglais)

Swiss Database: Euro-DB of the
State Secretariat for Education and Research
Hallwylstrasse 4
CH-3003 Berne, Switzerland
Tel. [phone]
Swiss Project-Number: 01.0168