The development of computational fluid dynamic (CFD) models of air ingress into the vacuum vessel (VV) represents an important issue concerning the safety analysis of nuclear fusion devices, in particular in the field of dust mobilization. The present work deals with the large eddy simulations (LES) of fluid dynamic fields during a vessel filling at near vacuum conditions to support the safety study of Loss of Vacuum Accidents (LOVA) events triggered by air income. The model's results are compared to the experimental data provided by STARDUST facility at different pressurization rates (100 Pa/s, 300 Pa/s and 500 Pa/s). Simulation's results compare favorably with experimental data, demonstrating the possibility of implementing LES in large vacuum systems as tokamaks. © 2013 Elsevier B.V.

Benedetti, M., Gaudio, P., Lupelli, I., Malizia, A., Porfiri, M., Richetta, M. (2013). Large eddy simulation of Loss of Vacuum Accident in STARDUST facility. FUSION ENGINEERING AND DESIGN, 88(9-10), 2665-2668 [10.1016/j.fusengdes.2013.01.033].

Large eddy simulation of Loss of Vacuum Accident in STARDUST facility

GAUDIO, PASQUALINO;MALIZIA, ANDREA;RICHETTA, MARIA
2013-01-01

Abstract

The development of computational fluid dynamic (CFD) models of air ingress into the vacuum vessel (VV) represents an important issue concerning the safety analysis of nuclear fusion devices, in particular in the field of dust mobilization. The present work deals with the large eddy simulations (LES) of fluid dynamic fields during a vessel filling at near vacuum conditions to support the safety study of Loss of Vacuum Accidents (LOVA) events triggered by air income. The model's results are compared to the experimental data provided by STARDUST facility at different pressurization rates (100 Pa/s, 300 Pa/s and 500 Pa/s). Simulation's results compare favorably with experimental data, demonstrating the possibility of implementing LES in large vacuum systems as tokamaks. © 2013 Elsevier B.V.
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore FIS/07 - Fisica Applicata(Beni Culturali, Ambientali, Biol.e Medicin)
Settore FIS/01 - Fisica Sperimentale
English
Con Impact Factor ISI
Different pressurization rates; Dust mobilization; Fluid dynamic field; Large vacuum systems; LES; Nuclear fusion; Nuclear fusion devices; Vacuum condition, Accidents; Computational fluid dynamics; Computer simulation; Dust; Experiments; Large eddy simulation; Nuclear energy; Vacuum, Vacuum technology
http://ac.els-cdn.com/S0920379613000422/1-s2.0-S0920379613000422-main.pdf?_tid=625aaf5c-6cf2-11e5-b757-00000aacb35f&acdnat=1444222579_b88e2198268c24d80adb14b63a5fb0af
Benedetti, M., Gaudio, P., Lupelli, I., Malizia, A., Porfiri, M., Richetta, M. (2013). Large eddy simulation of Loss of Vacuum Accident in STARDUST facility. FUSION ENGINEERING AND DESIGN, 88(9-10), 2665-2668 [10.1016/j.fusengdes.2013.01.033].
Benedetti, M; Gaudio, P; Lupelli, I; Malizia, A; Porfiri, M; Richetta, M
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/117933
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