Number of the records: 1

Swirling annular impinging jets with hysteretic behavior

SYSNO ASEP	0329572
Document Type	C - Proceedings Paper (int. conf.)
R&D Document Type	Conference Paper
Title	Swirling annular impinging jets with hysteretic behavior
Author(s)	Trávníček, Zdeněk (UT-L)_{RID, ORCID} Werner, E. (DE) Maršík, František (UT-L)_RID Kordík, Jozef (UT-L)_RID Šimurda, David (UT-L)_{RID, ORCID}
Source Title	Turbulence, Heat and Mass Transfer 6. - New York : Begell House Inc, 2009 / Hanjalić K. ; Nagano Y. ; Jakirlić S. - ISBN 978-1-56700-262-1
Pages	s. 497-500
Number of pages	4 s.
Publication form	CD ROM - CD ROM
Action	International Symposium on Turbulence, Heat and Mass Transfer (THMT’09) /6./
Event date	14.09.2009-18.09.2009
VEvent location	Řím
Country	IT - Italy
Event type	WRD
Language	eng - English
Country	US - United States
Keywords	impinging jet ; hysteresis ; bistability
Subject RIV	BK - Fluid Dynamics
R&D Projects	IAA200760801 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR)
	IAA200760504 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR)
	GA101/09/1959 GA ČR - Czech Science Foundation (CSF)
CEZ	AV0Z20760514 - UT-L (2005-2011)
Annotation	This paper is focused on an annular impinging jet with hysteretic behavior and possibility to control the phenomenon by means of jet swirling. An experimental study was performed with air as the working fluid using flow visualization, hot wire anemometry and wall pressure measurement. The bistability and hysteresis were confirmed and two different flowfield patterns were revealed under the same boundary conditions. It was found that weak swirling (S = 0.03) decreases the tendency to bistability and hysteretic behavior. The Reynolds number effect was also found: the bistability and hysteresis were identified only at Re < 3000.
Workplace	Institute of Thermomechanics
Contact	Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823
Year of Publishing	2010

Number of the records: 1