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VOF Calculations of Countercurrent Gas-Liquid Flow in a PWR Hot Leg
Joint Authors
Tomiyama, Akio
Takata, T.
Yanagi, Chihiro
Murase, Michio
Kinoshita, I.
Utanohara, Y.
Yamaguchi, A.
Source
Science and Technology of Nuclear Installations
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-03-19
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Engineering Sciences and Information Technology
Abstract EN
We improved the computational grid and schemes in the VOF (volume of fluid) method with the standard k−ε turbulent model in our previous study to evaluate CCFL (countercurrent flow limitation) characteristics in a full-scale PWR hot leg (750 mm diameter), and the calculated CCFL characteristics agreed well with the UPTF data at 1.5 MPa.
In this paper, therefore, to evaluate applicability of the VOF method to different fluid properties and a different scale, we did numerical simulations for full-scale air-water conditions and the 1/15-scale air-water tests (50 mm diameter), respectively.
The results calculated for full-scale conditions agreed well with CCFL data and showed that CCFL characteristics in the Wallis diagram were mitigated under 1.5 MPa steam-water conditions comparing with air-water flows.
However, the results calculated for the 1/15-scale air-water tests greatly underestimated the falling water flow rates in calculations with the standard k−ε turbulent model, but agreed well with the CCFL data in calculations with a laminar flow model.
This indicated that suitable calculation models and conditions should be selected to get good agreement with data for each scale.
American Psychological Association (APA)
Murase, Michio& Tomiyama, Akio& Kinoshita, I.& Utanohara, Y.& Yanagi, Chihiro& Takata, T.…[et al.]. 2012. VOF Calculations of Countercurrent Gas-Liquid Flow in a PWR Hot Leg. Science and Technology of Nuclear Installations،Vol. 2012, no. 2012, pp.1-9.
https://search.emarefa.net/detail/BIM-509482
Modern Language Association (MLA)
Murase, Michio…[et al.]. VOF Calculations of Countercurrent Gas-Liquid Flow in a PWR Hot Leg. Science and Technology of Nuclear Installations No. 2012 (2012), pp.1-9.
https://search.emarefa.net/detail/BIM-509482
American Medical Association (AMA)
Murase, Michio& Tomiyama, Akio& Kinoshita, I.& Utanohara, Y.& Yanagi, Chihiro& Takata, T.…[et al.]. VOF Calculations of Countercurrent Gas-Liquid Flow in a PWR Hot Leg. Science and Technology of Nuclear Installations. 2012. Vol. 2012, no. 2012, pp.1-9.
https://search.emarefa.net/detail/BIM-509482
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-509482