Název: Bio-Inspired Synthetic Jet Actuator with Piezoelectrically Driven Nozzle with Oscillating Cross Section Area
Autoři: Trávníček, Zdeněk ; Antošová, Zuzana ; Wang, A.B.
Typ dokumentu: Příspěvky z konference
Konference/Akce: Topical Problems of Fluid Mechanics 2025, Prague (CZ), 20250212
Rok: 2025
Jazyk: eng
Abstrakt: A novel variant of a synthetic jet actuator (SJA) was designed and tested in air. This variant is based on biomimetic ideas recognizing that the synthetic jet principles can be observed in nature as the jetting process used by various underwater creatures to generate thrust for their locomotion. While practically all technical SJAs used rigid nozzles with constant cross-sectional areas, the living creatures use flexible and adjustable tissues. To mimic the jetting mechanism of living creatures, the proposed SJA uses a flexible nozzle with a temporally variable cross section. The modulation amplitude of the nozzle cross-section area was approximately ±33% of the average area at the driving frequency of f = 62 Hz. The characteristic velocity and Reynolds number were 7.6 m/s and 2,420, respectively.
Klíčová slova: actuator; biomimetics; synthetic jet
Číslo projektu: NSTC-24-03 (CEP)
Poskytovatel projektu: AV ČR
Zdrojový dokument: Topical Problems of Fluid Mechanics 2025, ISBN 978-80-87012-05-5, ISSN 2336-5781
Poznámka: Související webová stránka: http://www2.it.cas.cz/fm/im/im/proceeding/2025/32

Instituce: Ústav termomechaniky AV ČR (web)
Informace o dostupnosti dokumentu: Dokument je dostupný na vyžádání prostřednictvím repozitáře Akademie věd.
Původní záznam: https://hdl.handle.net/11104/0366300

Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-679003