Coupled system thermal Hydraulics/CFD models: General guidelines and applications to heavy liquid metals

Andrea Pucciarelli, Antonio Toti, Diego Castelliti, Francesco Belloni, Katrien Van Tichelen, M. Moscardini, F. Galleni, Nicola Forgione

Research outputpeer-review


This work aims to review the general guidelines to be adopted to perform coupled System Thermal Hydraulics (STH)/CFD calculations. The coupled analysis is often required when complex phenomena characterized by different characteristic time and length scales are investigated. Indeed, by STH/CFD coupling the main drawbacks of both stand-alone codes are overcome, reducing the computational cost and providing more realistic solutions. A review of several works available in literature and involving different coupling approaches, codes, time-advancing schemes and application fields is given. Besides STH/CFD coupling techniques, spatial domains and numerical schemes are analysed in detail. A brief description of applications to heavy liquid metal systems is also reported; lessons drawn in the frame of these and other works are then considered in order to develop a set of good practice guidelines for coupled STH/CFD applications.
Original languageEnglish
Article number107990
Pages (from-to)1-23
Number of pages23
JournalAnnals of nuclear energy
StatePublished - Apr 2021

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