Numerical Solution of Two-Phase Flow of Wet Steam with a Given Droplet Size Distribution Function

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F13%3A00211088" target="_blank" >RIV/68407700:21220/13:00211088 - isvavai.cz</a>

Výsledek na webu

<a href="http://scitation.aip.org/content/aip/proceeding/aipcp/1558" target="_blank" >http://scitation.aip.org/content/aip/proceeding/aipcp/1558</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/1.4825461" target="_blank" >10.1063/1.4825461</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Numerical Solution of Two-Phase Flow of Wet Steam with a Given Droplet Size Distribution Function

Popis výsledku v původním jazyce

The paper describes the model of a flow of steam with non-equilibrium phase change due to the condensation of sub-cooled vapor. This model is particularly interesting for modeling of flow in steam turbines. The paper presents the new droplet growth modelwhich is based on the assumption of the shape of droplet size distribution function and which approximates the polydispersity of wet steam. Additional extensions are related to the empirical corrections of the homogenous nucleation rate, alternative equation of state and regularization of droplet growth speed term. Numerical results are obtained by in-house numerical code based on the symmetrical fractional step method, which is based on a finite volume method for the convection terms with on the Runge-Kutta method for the homogenous nucleation and droplet growth terms. Numerical results for the flow in a convergent- divergent nozzle show the effect of new droplet growth model based on the given shape of droplet size distribution funct

Název v anglickém jazyce

Numerical Solution of Two-Phase Flow of Wet Steam with a Given Droplet Size Distribution Function

Popis výsledku anglicky

The paper describes the model of a flow of steam with non-equilibrium phase change due to the condensation of sub-cooled vapor. This model is particularly interesting for modeling of flow in steam turbines. The paper presents the new droplet growth modelwhich is based on the assumption of the shape of droplet size distribution function and which approximates the polydispersity of wet steam. Additional extensions are related to the empirical corrections of the homogenous nucleation rate, alternative equation of state and regularization of droplet growth speed term. Numerical results are obtained by in-house numerical code based on the symmetrical fractional step method, which is based on a finite volume method for the convection terms with on the Runge-Kutta method for the homogenous nucleation and droplet growth terms. Numerical results for the flow in a convergent- divergent nozzle show the effect of new droplet growth model based on the given shape of droplet size distribution funct

Druh

D - Stať ve sborníku

CEP obor

BK - Mechanika tekutin

OECD FORD obor

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Projekt

<a href="/cs/project/GAP101%2F11%2F1593" target="_blank" >GAP101/11/1593: Výzkum nerovnovážné kondenzace páry - nový přístup</a><br>

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2013

Kód důvěrnosti údajů

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

Název statě ve sborníku

11th International Conference of Numerical Analysis and Applied Mathematics 2013

ISBN

978-0-7354-1184-5

ISSN

0094-243X

e-ISSN

—

Počet stran výsledku

4

Strana od-do

224-227

Název nakladatele

American Institute of Physics

Místo vydání

New York

Místo konání akce

Rhodos

Datum konání akce

21. 9. 2013

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000331472800054