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Bio-Inspired Synthetic Jet Actuator with Piezoelectrically Driven Nozzle with Oscillating Cross Section Area
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SYSNO ASEP 0617349 Document Type C - Proceedings Paper (int. conf.) R&D Document Type The record was not marked in the RIV Title Bio-Inspired Synthetic Jet Actuator with Piezoelectrically Driven Nozzle with Oscillating Cross Section Area Author(s) Trávníček, Zdeněk (UT-L) RID, ORCID
Antošová, Zuzana (UT-L) ORCID, RID
Wang, A.B. (TW)Number of authors 3 Source Title Topical Problems of Fluid Mechanics 2025. - Prague : Ústav termomechaniky AV ČR v. v. i., 2025 / Šimurda D. ; Bodnár T. - ISSN 2336-5781 - ISBN 978-80-87012-05-5 Pages s. 241-248 Number of pages 8 s. Publication form Print - P Action Topical Problems of Fluid Mechanics 2025 Event date 12.02.2025 - 14.02.2025 VEvent location Prague Country CZ - Czech Republic Event type WRD Language eng - English Country CZ - Czech Republic Keywords actuator ; synthetic jet ; biomimetics OECD category Fluids and plasma physics (including surface physics) Institutional support UT-L - RVO:61388998 DOI https://doi.org/10.14311/TPFM.2025.032 Annotation 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. 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 2026
Number of the records: 1