Numerical simulations of free surface flows using a three-equation model

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F17%3A43932510" target="_blank" >RIV/49777513:23520/17:43932510 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Numerical simulations of free surface flows using a three-equation model

Popis výsledku v původním jazyce

Numerical results obtained from the application of a three-equation model for free surface flows are presented in the paper. The compressible two-phase flow model is suitable for complex free surface flow simulations that can, for example, include breaking waves. Compared to commonly used shallow water models, the model described in the paper offers certain advantages and wider applicability as it can deal with problems associated with complex interfaces. On the other hand, it should be noted that the model describes only one flow field and the solution of pressure field is significantly simplified. Derived from the seven-equation Baer-Nunziato model and completed with the Tait equation of state, it consists of mass and momentum evolution equations in conservative form and of an advection equation for volume fraction in non-conservative form. A numerical code based on the finite volume method was developed, in which the conservative numerical flux is approximated by an AUSM scheme. For spatial discretization of the non-conservative term contained in the model, an AUSM-based scheme is applied. The developed algorithm was successfully verified by a dambreak test.

Název v anglickém jazyce

Numerical simulations of free surface flows using a three-equation model

Popis výsledku anglicky

Numerical results obtained from the application of a three-equation model for free surface flows are presented in the paper. The compressible two-phase flow model is suitable for complex free surface flow simulations that can, for example, include breaking waves. Compared to commonly used shallow water models, the model described in the paper offers certain advantages and wider applicability as it can deal with problems associated with complex interfaces. On the other hand, it should be noted that the model describes only one flow field and the solution of pressure field is significantly simplified. Derived from the seven-equation Baer-Nunziato model and completed with the Tait equation of state, it consists of mass and momentum evolution equations in conservative form and of an advection equation for volume fraction in non-conservative form. A numerical code based on the finite volume method was developed, in which the conservative numerical flux is approximated by an AUSM scheme. For spatial discretization of the non-conservative term contained in the model, an AUSM-based scheme is applied. The developed algorithm was successfully verified by a dambreak test.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20302 - Applied mechanics

Projekt

<a href="/cs/project/LO1506" target="_blank" >LO1506: Podpora udržitelnosti centra NTIS - Nové technologie pro informační společnost</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název statě ve sborníku

Engineering Mechanics 2017, Book of Full Texts

ISBN

978-80-214-5497-2

ISSN

1805-8248

e-ISSN

neuvedeno

Počet stran výsledku

4

Strana od-do

786-789

Název nakladatele

Institute of Thermomechanics AS CR

Místo vydání

Brno

Místo konání akce

Svratka, Česká republika

Datum konání akce

15. 5. 2017

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000411657600186