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

• Research unit: EU RFP
• Project number: 01.0168

Key words (English)

Nuclear Fission; Radiation Protection; Safety

Alternative project number (English)

EU project number: FIKS-2001-00197

Research programs (English)

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

Short description (English)

See abstract

Abstract (English)

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.

References in databases (English)

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