The aim of the present work, carried out at DICI of University of Pisa, is to contribute to the development and improvement of coupling methods between CFD codes and thermal-hydraulic system (STH) codes. The CFD solvers adopted are STAR-CCM+ and Fluent, whereas the system code RELAP5 is used. The work was structured in two parts. The first part aims at simulating with STAR-CCM+ the Protected Loss Of Heat Sink with Loss Of Flow accidental scenario inside CIRCE pool type facility with DHR. The second part deals with the development of a “two way” implicit coupling scheme between Fluent and RELAP5 in order to simulate a CIRCE experimental test representative of an isothermal gas enhanced circulation test. The performed simulations are the first application of the in-house developed coupling tool for a pool type facility, showing the opportunity to determinate a new data exchange methodology in order to guarantee a proper convergence. The obtained results shows good agreement with the experimental data giving confidence on the developed tool.
|Titolo:||Verifica e validazione preliminare sull’accoppiamento del codice di calcolo RELAP5/Mod.3.3 e il codice di fluidodinamica computazionale ANSYS Fluent|
|Data di pubblicazione:||25-set-2015|
|Appare nelle tipologie:||5.2 Documento in Garanzia della Qualità|