Battistini, A, Cammi, A, Lorenzi, S et al. (2 more authors) (2021) Development of a CFD - LES model for the dynamic analysis of the DYNASTY Natural Circulation Loop. Chemical Engineering Science, 237. 116520. p. 116520. ISSN 0009-2509
Abstract
Natural circulation is exploited in nuclear systems to passively remove power in case of accident scenarios. In this regard, the DYNASTY experimental facility at Politecnico di Milano has been setup to increase the knowledge on single-phase, buoyancy-driven systems in the presence of distributed heating. In this paper, the development of a computational fluid dynamics (CFD) model of DYNASTY is presented, focusing on the capability of CFD to assess the dynamic behavior of the facility. The large eddy simulation (LES) model takes into account both the fluid and the solid regions, with heat generation and 3D heat conduction resolved in the pipe walls. The study, conducted using OpenFOAM, shows (i) the capability of reproducing stable and unstable transients of DYNASTY, (ii) new observations on the features of flow reversals during unstable transients, (iii) the suitability and the advantages of LES for the prediction of the specific features of natural circulation systems.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | ©2021 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license |
Keywords: | CFDLES; Natural circulation; Thermal–hydraulics; Molten salt; OpenFOAM |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Chemical & Process Engineering (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 19 Mar 2021 16:23 |
Last Modified: | 19 Mar 2021 16:23 |
Status: | Published |
Publisher: | Elsevier |
Identification Number: | 10.1016/j.ces.2021.116520 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:172303 |