Synthetic jets actuation at the resonance frequency
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24210%2F04%3A24210030" target="_blank" >RIV/46747885:24210/04:24210030 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Synthetic jets actuation at the resonance frequency
Original language description
An air round jet was generated by means of a zero-net-mass-flux actuator. Generation (synthesis) of the jet flow was tested experimentally by smoke visualization and hot-wire anemometry, and a satisfactory function was confirmed. The choice of suitable oerating frequency was found by means of theoretical as well as experimental approach: the resultant 75 Hz was found near the theoretically derived resonance frequency as well as near the maximum measured time-mean velocity. The hot-wire data were decompoed using the phase-averaged technique. The experiments present a formation of the synthetic jet when fluid puffs travel downstream and the periodic component of the velocity gradually diminishes. The investigated, originally pulsatile jet resembles a conentional jet for the axial distance greater than 20 diameters from the orifice, where the streamwise decay of the centerline time-mean velocity is described by the proportionality with the exponent
Czech name
Synthetic jet - aktuator v režimu rezonance
Czech description
Práce se věnuje problematice Synthetic Jets a přináčí výsledky termoanemometrických experimentů a vizualizace metodou kouřového drátku
Classification
Type
D - Article in proceedings
CEP classification
BK - Liquid mechanics
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GA101%2F02%2F0364" target="_blank" >GA101/02/0364: Steam flow with gas and solid particle admixtures</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2004
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
21INTERNATIONAL CONGRESS OF THEORETICAL AND APPLIED MECHANICS
ISBN
83-89687-01-2
ISSN
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e-ISSN
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Number of pages
1
Pages from-to
113
Publisher name
IPPT PAN
Place of publication
Warszawa, Poland
Event location
Warszawa, Poland
Event date
Jan 1, 2004
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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