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Spectral analysis of a synthetic jet
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SYSNO ASEP 0359158 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Spectral analysis of a synthetic jet Tvůrce(i) Tesař, Václav (UT-L) RID
Kordík, Jozef (UT-L) RIDCelkový počet autorů 2 Zdroj.dok. Sensors and Actuators A - Physical. - : Elsevier - ISSN 0924-4247
Roč. 167, č. 2 (2011), s. 213-225Poč.str. 13 s. Jazyk dok. eng - angličtina Země vyd. CH - Švýcarsko Klíč. slova jet ; synthetic jet ; frequency spectrum Vědní obor RIV BK - Mechanika tekutin CEP GA101/07/1499 GA ČR - Grantová agentura ČR IAA200760705 GA AV ČR - Akademie věd CEZ AV0Z20760514 - UT-L (2005-2011) UT WOS 000291286300009 DOI 10.1016/j.sna.2011.02.011 Anotace In their earlier publications, the present authors discovered a phenomenon, previously not reported, of sudden substantial change in the character and structure of axisymmetric synthetic jets that occurs at relative axial distance ~ 50 nozzle diameters. It was suggested the change is associated with the transition from the regime dominated by coherent vortical structures into the flow dominated by stochastic turbulence. To validate this hypothesis, frequency spectra were incestigated at various locations in a synthetic jet generated in d = 4mm dia. nozzle at the forcing frequency ff = 30Hz. The results corroborate the idea. In addition, the analysis has lead to several previously not known facts about structure and character of synthetic jets. Pracoviště Ústav termomechaniky Kontakt Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 Rok sběru 2012 Elektronická adresa http://www.sciencedirect.com/science/article/pii/S0924424711000628
Počet záznamů: 1