CFD Analysis of a Slug Mixing Experiment Conducted on a VVER-1000 Model
Joint Authors
Hoehne, Thomas
Del Nevo, Alessandro
Lisenkov, E.
Melideo, D.
Moretti, Fabio
D'Auria, Francesco
Source
Science and Technology of Nuclear Installations
Issue
Vol. 2009, Issue 2009 (31 Dec. 2009), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2008-12-15
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Engineering Sciences and Information Technology
Abstract EN
A commercial CFD code was applied, for validation purposes, to the simulation of a slug mixing experiment carried out at OKB “Gidropress” scaled facility in the framework of EC TACIS project R2.02/02: “Development of safety analysis capabilities for VVER-1000 transients involving spatial variations of coolant properties (temperature or boron concentration) at core inlet.” Such experimental model reproduces a VVER-1000 nuclear reactor and is aimed at investigating the in-vessel mixing phenomena.
The addressed experiment involves the start-up of one of the four reactor coolant pumps (the other three remaining idle), and the presence of a tracer slug on the starting loop, which is thus transported to the reactor pressure vessel where it mixes with the clear water.
Such conditions may occur in a boron dilution scenario, hence the relevance of the addressed phenomena for nuclear reactor safety.
Both a pretest and a posttest CFD simulations of the mentioned experiment were performed, which differ in the definition of the boundary conditions (based either on nominal quantities or on measured quantities, resp.).
The numerical results are qualitatively and quantitatively analyzed and compared against the measured data in terms of space and time tracer distribution at the core inlet.
The improvement of the results due to the optimization of the boundary conditions is evidenced, and a quantification of the simulation accuracy is proposed.
American Psychological Association (APA)
Moretti, Fabio& Melideo, D.& Del Nevo, Alessandro& D'Auria, Francesco& Hoehne, Thomas& Lisenkov, E.. 2008. CFD Analysis of a Slug Mixing Experiment Conducted on a VVER-1000 Model. Science and Technology of Nuclear Installations،Vol. 2009, no. 2009, pp.1-12.
https://search.emarefa.net/detail/BIM-472114
Modern Language Association (MLA)
Moretti, Fabio…[et al.]. CFD Analysis of a Slug Mixing Experiment Conducted on a VVER-1000 Model. Science and Technology of Nuclear Installations No. 2009 (2009), pp.1-12.
https://search.emarefa.net/detail/BIM-472114
American Medical Association (AMA)
Moretti, Fabio& Melideo, D.& Del Nevo, Alessandro& D'Auria, Francesco& Hoehne, Thomas& Lisenkov, E.. CFD Analysis of a Slug Mixing Experiment Conducted on a VVER-1000 Model. Science and Technology of Nuclear Installations. 2008. Vol. 2009, no. 2009, pp.1-12.
https://search.emarefa.net/detail/BIM-472114
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-472114