Publication detail
Comparison of CFD simulations and measurements of flow affected by coanda effect
FIŠER, J. JEDELSKÝ, J. VACH, T. FORMAN, M. JÍCHA, M.
Czech title
Porování výsledků simluace proudu ovlivněného Coandovým efektem s experimenty
English title
Comparison of CFD simulations and measurements of flow affected by coanda effect
Type
conference paper
Language
en
Original abstract
The article deals with experimental research and numerical simulations of specific phenomena in fluid flows called Coanda effect (CE), which has numerous important engineering applications. Although many researchers have concerned with wall jets, the physics of this flow still remains not well understood. This study is focused on analysis of behaviour of jet flow close to the wall and influence of its inclination. The flow has been visualized using smoke and velocity was measured by means of Hot Wire Anemometry (HWA). CFD simulations have been performed on the same geometry and compared with experiments in order to find a tool for correct prediction of the CE.
Czech abstract
Článek se zabývá experimentálním výzkumem a počítačovou simulací proudu vzduchu ovlivněného specifickým fenoméne známým jako Coandův jev. Ačkoliv má tento jev celou řadu aplikací, nejsou doposud úplně podrobně prozkoumány podmínky jeho vzniku. Tato studie se především zaměřuje na analýzu vlivu úhlu mezi stěnou a osou proudu na chování proud. V laboratorních experimentech byla pro zviditelnění proud použita kouřová metoda a pro měření rychlostí byla využita sonda se žhaveným drátkem (Hot Wire Anemometry – HWA). Pro CFD simulace byla použita stejná geometrie jako pro laboratorní experimenty, přičemž výsledky simulací byly porovnány s výsledky experimentů.
English abstract
The article deals with experimental research and numerical simulations of specific phenomena in fluid flows called Coanda effect (CE), which has numerous important engineering applications. Although many researchers have concerned with wall jets, the physics of this flow still remains not well understood. This study is focused on analysis of behaviour of jet flow close to the wall and influence of its inclination. The flow has been visualized using smoke and velocity was measured by means of Hot Wire Anemometry (HWA). CFD simulations have been performed on the same geometry and compared with experiments in order to find a tool for correct prediction of the CE.
Keywords in Czech
Coandův efekt, Vizualizace produ, Výpočtová mechanika tekutin
Keywords in English
Coanda Effect, Flow Visualisation, Computational Fluid Dynamics
RIV year
2011
Released
16.04.2012
Publisher
EDP Sciences
ISBN
978-80-7372-784-0
ISSN
2100-014X
Book
EPJ Web of Conferences
Volume
25
Number
1
Pages from–to
621–625
Pages count
5
BIBTEX
@inproceedings{BUT89145,
author="Jan {Fišer} and Jan {Jedelský} and Tomáš {Vach} and Matěj {Forman} and Miroslav {Jícha},
title="Comparison of CFD simulations and measurements of flow affected by coanda effect",
booktitle="EPJ Web of Conferences",
year="2012",
volume="25",
number="1",
month="April",
pages="621--625",
publisher="EDP Sciences",
isbn="978-80-7372-784-0",
issn="2100-014X"
}