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Visualization study of hybrid synthetic jets
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SYSNO ASEP 0448851 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Visualization study of hybrid synthetic jets Author(s) Broučková, Zuzana (UT-L) RID, ORCID
Trávníček, Zdeněk (UT-L) RID, ORCIDNumber of authors 2 Source Title Journal of Visualization. - : Springer - ISSN 1343-8875
Roč. 18, č. 4 (2015), s. 581-593Number of pages 13 s. Publication form Print - P Language eng - English Country DE - Germany Keywords synthetic jet ; efficiency ; flow visualization Subject RIV JU - Aeronautics, Aerodynamics, Aircrafts R&D Projects GA14-08888S GA ČR - Czech Science Foundation (CSF) Institutional support UT-L - RVO:61388998 UT WOS 000362972900003 EID SCOPUS 84944353108 DOI 10.1007/s12650-014-0256-8 Annotation A hybrid synthetic jet (HSJ) combines a principle of a synthetic jet (SJ) with fluidic pumping through a valveless pump. This study addresses round HSJs in air. A SJ is also used. The Reynolds numbers are 11,000 (HSJs) and 9,000 (SJs). Five experimental methods are employed: visualization (smoke-wire technique), velocity measurements (hot-wire anemometer, Pitot tube), impedance measurements and measurements of the jet momentum. The HSJ achieves 24 % higher pumped volume flow rate than SJ (the maximum volumetric efficiency is 33 %). The overall energy efficiency of the HSJ actuator is 1.8 times higher than that of the SJ actuator. 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 2016
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