Air Ingress Process Simulations in CFD

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F11%3A00187817" target="_blank" >RIV/68407700:21220/11:00187817 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.enygf.eu/download/01/01_16_Gregor_paper.pdf" target="_blank" >http://www.enygf.eu/download/01/01_16_Gregor_paper.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Air Ingress Process Simulations in CFD

Popis výsledku v původním jazyce

Two separate phases - isothermal molecular diffusion and non-isothermal diffusion with natural circulation - were simulated in CFD program Fluent. The CFD solver was exercised and the results were compared with experimental data. The influence of the size of computational mesh and length of time step of unsteady solver were studied. For the simulation of isothermal molecular diffusion the coarser mesh with about 9000 hexahedral cells was suitable. The length of time step of about 0,05s seems to be optimal. The non-isothermal diffusion and natural circulation simulations were performed and compared with the experimental data. The simulated onset time of the natural circulation was not quite in a good agreement with the experiment with deviation of 18%.

Název v anglickém jazyce

Air Ingress Process Simulations in CFD

Popis výsledku anglicky

Two separate phases - isothermal molecular diffusion and non-isothermal diffusion with natural circulation - were simulated in CFD program Fluent. The CFD solver was exercised and the results were compared with experimental data. The influence of the size of computational mesh and length of time step of unsteady solver were studied. For the simulation of isothermal molecular diffusion the coarser mesh with about 9000 hexahedral cells was suitable. The length of time step of about 0,05s seems to be optimal. The non-isothermal diffusion and natural circulation simulations were performed and compared with the experimental data. The simulated onset time of the natural circulation was not quite in a good agreement with the experiment with deviation of 18%.

Druh

D - Stať ve sborníku

CEP obor

JF - Jaderná energetika

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2011

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

ENYGF 2011 - Extended Abstracts

ISBN

978-80-02-02320-3

ISSN

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e-ISSN

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Počet stran výsledku

1

Strana od-do

50

Název nakladatele

Czech Nuclear Society - Czech Young Generation

Místo vydání

Praha

Místo konání akce

Praha

Datum konání akce

17. 5. 2011

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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