Community Research and Development Information Service - CORDIS


In 1988 a comparative study on important features and models in six major best estimate thermal hydraulic codes for PWR systems was implemented. It was a limitation of that study that the source codes themselves were not available but the comparison had to be based on the available documentation. In the present study, the source codes were available and the capability of four system codes to predict complex two-phase flow phenomena has been assessed. Two areas of investigation were selected: (a) pressurised spray phenomena; (b) boil-up phenomena in rod bundles. As regards the former, experimental data obtained in 1972 on the Neptunus facility (Delft University of Technology) were compared with the results of the calculations using Athlet, Cathare, Relap 5 and TRAC-PT1 and, for the latter, the results of two experimental facilities obtained in 1980 and 1985 on Thetis (UKEA) and Pericles (CEA-Grenoble) were considered.

Additional information

Authors: CEA, CEA (FR);GRS, GRS mbH (DE)
Bibliographic Reference: EUR 12901 EN (1990) 111 pp., FS, ECU 10
Availability: (2)
ISBN: ISBN 92-826-1635-5
Record Number: 199011362 / Last updated on: 1994-12-01
Original language: en
Available languages: en