Two-Phase CFD of Channel Boiling for Boiling Transition Problems

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F14%3A00306567" target="_blank" >RIV/68407700:21340/14:00306567 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1115/ICONE22-30970" target="_blank" >http://dx.doi.org/10.1115/ICONE22-30970</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1115/ICONE22-30970" target="_blank" >10.1115/ICONE22-30970</a>

Result language
angličtina
Original language name
Two-Phase CFD of Channel Boiling for Boiling Transition Problems
Original language description
In order to ensure safety of nuclear installations, thermohydraulics has developed many ways how to predict the behavior of coolant in a heated boiling channel. Accuracy of these predictions can be improved using three-dimensional Computational Fluid Dynamics (CFD) method, which is based on first principles of fluid mechanics. Even though when using CFD, there is a struggle between the accuracy and low computation costs, in many cases CFD can provide feasible improvement of accuracy compared to more traditional approaches. In this research, the focus is set on channel boiling problems, especially those associated with boiling transitions. The phenomenon of critical heat flux (CHF) is investigated using two-phase CFD computation and is compared to experimental data. There is also comparison with other computation methods. When experiment provides some set of data, CFD calculation provides description of the whole flow behavior that provides significantly more information and is of great value during the design process when it gives the understanding of undergoing effects. Besides CHF, general ability of CFD to predict changes in boiling patterns in two-phase channel boiling flows is discussed.
Czech name
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Czech description
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Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
International Conference on Nuclear Engineering, Proceedings, ICONE
ISBN
978-0-7918-4595-0
ISSN
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e-ISSN
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Number of pages
8
Pages from-to
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Publisher name
American Society of Mechanical Engineers - ASME
Place of publication
New York
Event location
Praha
Event date
Jul 7, 2014
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000367118300070

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