0582444 - ÚT 2024 US eng C - Conference Paper (international conference)
Antošová, Zuzana - Trávníček, Zdeněk
Control of annular air jet by means of swirling effect.
10th International Symposium on Turbulence, Heat and Mass Transfer : THMT-23. New York: Begell House, Inc., 2023, s. 123-126. ISBN 978-1-56700-534-9. ISSN 2377-4169. E-ISSN 2377-2816.
[International Symposium On Turbulence, Heat and Mass Transfer /10./. Rome (IT), 11.09.2023-15.09.2023]
R&D Projects: GA ČR(CZ) GC21-26232J
Keywords : annular jet * swirling * active control
OECD category: Thermodynamics
DOI: https://doi.org/10.1615/ICHMT.THMT-23.70

The paper focuses on the experimental investigation of the active control of an annular jet by means of swirling effect. Experiments were performed in air using flow visualization, PIV measurement and microphone measurement of the pressure fluctuation. Five swirl numbers were tested, including the case with no control, i.e. the swirl number was zero. It was shown that weak swirling stabilizes the flowfield pattern, while the stronger swirling promotes the enhancement of velocity fluctuations.
Permanent Link: https://hdl.handle.net/11104/0351460