Spectral analysis of a synthetic jet

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F11%3A00359158" target="_blank" >RIV/61388998:_____/11:00359158 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.sciencedirect.com/science/article/pii/S0924424711000628" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0924424711000628</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.sna.2011.02.011" target="_blank" >10.1016/j.sna.2011.02.011</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Spectral analysis of a synthetic jet

Popis výsledku v původním jazyce

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. Itwas 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 locationsin 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.

Název v anglickém jazyce

Spectral analysis of a synthetic jet

Popis výsledku anglicky

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. Itwas 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 locationsin 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.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BK - Mechanika tekutin

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2011

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Sensors and Actuators A - Physical

ISSN

0924-4247

e-ISSN

—

Svazek periodika

167

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

13

Strana od-do

213-225

Kód UT WoS článku

000291286300009

EID výsledku v databázi Scopus

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