Conference paper Open Access

A COMPARISON BETWEEN TIME DOMAIN AND FREQUENCY DOMAIN CALCULATIONS OF STATIONARY NEUTRON FLUCTUATIONS

Viebach M., Lange C., Kliem S., Demazière C., Rohde U., Hennig D. and Hurtado A.


JSON-LD (schema.org) Export

{
  "description": "<p>Unexplained neutron flux fluctuation patterns observed in some reactors were recently<br>\ninvestigated by various European institutions. The time-domain code DYN3D is one of<br>\nthe tools used for simulating these fluctuations. Though, the applicability of time-domain<br>\ncodes for modelling small stationary fluctuations remains a discussed question.<br>\nAiming at a confirmation that these codes may be applied for neutron noise calculations,<br>\ntwo special cases of neutron flux oscillations have been simulated with DYN3D and with<br>\nCORE SIM, the latter one being validated for the context here. The comparison between<br>\nthe results of these two codes is the subject of this paper.<br>\nThis study demonstrates that time- and frequency-dependent calculations can give qualitatively<br>\nequivalent results but substantial quantitative deviations may occur. Nevertheless,<br>\nDYN3D may be considered as qualified for neutron-noise calculations as the deviations<br>\nare smaller than 20 %. The optimization of the DYN3D setup is a matter of future research.</p>", 
  "license": "https://creativecommons.org/licenses/by/4.0/legalcode", 
  "creator": [
    {
      "@type": "Person", 
      "name": "Viebach M., Lange C., Kliem S., Demazi\u00e8re C., Rohde U., Hennig D. and Hurtado A."
    }
  ], 
  "headline": "A COMPARISON BETWEEN TIME DOMAIN AND FREQUENCY DOMAIN CALCULATIONS OF STATIONARY NEUTRON FLUCTUATIONS", 
  "image": "https://zenodo.org/static/img/logos/zenodo-gradient-round.svg", 
  "datePublished": "2019-08-25", 
  "url": "https://zenodo.org/record/3567604", 
  "@type": "ScholarlyArticle", 
  "keywords": [
    "neutron noise, DYN3D, CORE SIM"
  ], 
  "@context": "https://schema.org/", 
  "identifier": "https://doi.org/10.5281/zenodo.3567604", 
  "@id": "https://doi.org/10.5281/zenodo.3567604", 
  "workFeatured": {
    "url": "https://www.mc2019.org/", 
    "alternateName": "M&C 2019", 
    "location": "Portland, Oregon, USA", 
    "@type": "Event", 
    "name": "Mathematics & Computational Methods Applied to Nuclear Science & Engineering"
  }, 
  "name": "A COMPARISON BETWEEN TIME DOMAIN AND FREQUENCY DOMAIN CALCULATIONS OF STATIONARY NEUTRON FLUCTUATIONS"
}
76
53
views
downloads
All versions This version
Views 7676
Downloads 5353
Data volume 29.6 MB29.6 MB
Unique views 6767
Unique downloads 5151

Share

Cite as