Publication detail
Experimental measurement and numerical modeling of cavitating flow in converging-diverging nozzle
RUDOLF, P. HUDEC, M. ZUBÍK, P. ŠTEFAN, D.
Czech title
Experimentální měření a numerické modelování proudění v konvergentně-divergentní trysce
English title
Experimental measurement and numerical modeling of cavitating flow in converging-diverging nozzle
Type
conference paper
Language
en
Original abstract
Paper presents results of the experimental research and computational modeling aimed on cavitating vortical structures induced by swirling flow. An experimental circuit was built with swirl generator and converging-diverging nozzle made of plexiglass. Cavitating zone develops along the nozzle axis due to balance of pressure and centrifugal forces. Resulting vortical structure is unstable, which is manifested by pulsations. Computational modelling of the one-phase flow is carried out and results are confronted with experimental data and the different modelling approaches are discussed.
Czech abstract
Článek prezentuje výsledky experimentálního výzkumu a výpočtového modelování kavitující vírové struktury vyvolané rotujícím prouděním. Experimentální zařízení sestává z generátoru víru a plexisklové konvergentně-divergentní dýzy. Podél osy dýzy vzniká v důsledku rovnováhy tlakových a odstředivých sil kavitující vírové jádro, které je v čase nestabilní. Bylo provedeno výpočtové modelování jednofázového proudění a oblasti s tlakem na úrovni tlaku nasycených par jsou porovnávány s experimentální vizualizací.
English abstract
Paper presents results of the experimental research and computational modeling aimed on cavitating vortical structures induced by swirling flow. An experimental circuit was built with swirl generator and converging-diverging nozzle made of plexiglass. Cavitating zone develops along the nozzle axis due to balance of pressure and centrifugal forces. Resulting vortical structure is unstable, which is manifested by pulsations. Computational modelling of the one-phase flow is carried out and results are confronted with experimental data and the different modelling approaches are discussed.
Keywords in Czech
kavitace, vír, vírové proudění
Keywords in English
cavitation, vortex, swirling flow
RIV year
2011
Released
23.11.2011
Publisher
Technical University of Liberec
Location
Liberec
ISBN
978-80-7372-784-0
Book
Proceedings of the International Conference Experimental Fluid Mechanics 2011
Pages from–to
423–431
Pages count
8
BIBTEX
@inproceedings{BUT75145,
author="Pavel {Rudolf} and Martin {Hudec} and Pavel {Zubík} and David {Štefan},
title="Experimental measurement and numerical modeling of cavitating flow in converging-diverging nozzle",
booktitle="Proceedings of the International Conference Experimental Fluid Mechanics 2011",
year="2011",
month="November",
pages="423--431",
publisher="Technical University of Liberec",
address="Liberec",
isbn="978-80-7372-784-0"
}