Original title: Annular Impinging Jets and an Active Control of Hysteretic Effects
Authors: Devani, Yogendrasasidhar ; Antošová, Zuzana ; Trávníček, Zdeněk
Document type: Papers
Conference/Event: Topical Problems of Fluid Mechanics 2023, Prague (CZ), 20230222
Year: 2023
Language: eng
Abstract: An annular impinging air jet with and without flow control was studied experimentally using measurements of the wall pressure and flow velocity by the Pitot probe. To investigate flow control swirling effects, eight synthetic jets were generated from the nozzle center body. The experiments cover Reynolds numbers 4000–10,000 (evaluated from the outer exit diameter of the annular nozzle). For Re<9000, the bistability and hysteresis were identified and two different flow field patterns (A, B) were found under the same boundary conditions. For higher Re>9000, the hysteresis were not found.
Keywords: annular jet; hysteresis; impinging jet
Project no.: GC21-26232J (CEP)
Funding provider: GA ČR
Host item entry: Topical Problems of Fluid Mechanics 2023, ISBN 978-80-87012-83-3, ISSN 2336-5781
Note: Související webová stránka: http://www2.it.cas.cz/fm/im/im/proceeding/2023/3

Institution: Institute of Thermomechanics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: https://hdl.handle.net/11104/0344096

Permalink: http://www.nusl.cz/ntk/nusl-528982


The record appears in these collections:
Research > Institutes ASCR > Institute of Thermomechanics
Conference materials > Papers