Journal article Open Access
CORE SIM+ simulations of COLIBRI fuel rods oscillation experiments and comparison with measurements
Antonios G. Mylonakis; Christophe Demazière; Vinai P.; Vincent Lamirand; A. Rais; O. Pakari; P. Frajtag; D. Godat; M. Hursin; G. Perret; A. Laureau; C. Florian; A. Pautz
At EPFL, the CROCUS reactor has been used to carry out experiments with vibrating fuel rods. The paper presents a first attempt to employ the measured data to validate CORE SIM+, a neutron noise solver developed at Chalmers University of Technology. For this purpose, the original experimental data are processed in order to extract the necessary information. In particular, detector recordings are scrutinized and detrended, and used to estimate CPSDs of detector pairs. These values are then compared with the ones derived from the CORE SIM+ simulations of the experiments. The main trend of the experimental data along with the values for some detectors are successfully reproduced by CORE SIM+. Further work is necessary on both the experimental and computational sides in order to improve the validation process.
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- Publication date:
- April 2, 2020
- DOI:
-
- Keyword(s):
- Neutron noise Research reactor fuel rod vibration code validation
- Published in:
- Proceedings of the PHYSOR 2020, Cambridge, United Kingdom:.
- Grants:
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European Commission:
- CORTEX - Core monitoring techniques and experimental validation and demonstration (754316)
- Meeting:
- PHYSOR 2020: Transition to a Scalable Nuclear Future (PHYSOR), Cambridge, United Kingdom, March 29 - April 2
- License (for files):
- Creative Commons Attribution 4.0 International