Hybrid synthetic jet actuator with a novel fluidic diode

0378025 - ÚT 2013 RIV GB eng C - Konferenční příspěvek (zahraniční konf.)
Kordík, Jozef - Trávníček, Zdeněk
Hybrid synthetic jet actuator with a novel fluidic diode.
Advances in Fluid Mechanics IX. Southampton: WIT Press, 2012 - (Rahman, M.; Brebbia, C.), s. 493-503. ISBN 978-1-84564-600-4. ISSN 1746-4471.
[Advances in Fluid Mechanics /9./. Split (HR), 26.06.2012-28.06.2012]
Grant CEP: GA AV ČR(CZ) IAA200760801; GA ČR(CZ) GPP101/12/P556
Výzkumný záměr: CEZ:AV0Z20760514
Klíčová slova: synthetic jet * hybrid synthetic jet
Kód oboru RIV: BK - Mechanika tekutin

The paper deals with a new design of the hybrid synthetic jet actuator (HSJ), which is based on a novel fluidic diode. The fluidic diode was tested by a static experiment and its diodicity was evaluated. The same experiment was performed for a second fluidic diode whose planar geometry was taken from the literature and the resultant diodicities were compared. Higher diodicities were achieved with the new design of the diode. The velocity resonance curves were measured at the nozzle output for two variants of the HSJ with a short or with a long nozzle. After that the volumetric efficiencies of the HSJ were evaluated as functions of the frequency. The highest efficiency (over 80%) was achieved at the second resonant frequency of the actuator with the long nozzle.
Trvalý link: http://hdl.handle.net/11104/0007032