Energetic efficiencies of synthetic and hybrid synthetic jet actuators driven by electrodynamic transducers

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F15%3A00451240" target="_blank" >RIV/61388998:_____/15:00451240 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.expthermflusci.2015.08.005" target="_blank" >http://dx.doi.org/10.1016/j.expthermflusci.2015.08.005</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.expthermflusci.2015.08.005" target="_blank" >10.1016/j.expthermflusci.2015.08.005</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Energetic efficiencies of synthetic and hybrid synthetic jet actuators driven by electrodynamic transducers

Popis výsledku v původním jazyce

The paper investigates synthetic and hybrid synthetic jet actuators that are based on similar geometries. The actuators are supplied by a harmonic power input and are operated close to the first resonance frequency. An energetic efficiency is applied. The maximal outlet characteristic velocities and efficiencies of both actuators are studied as functions of the input real power. Theoretical approximations of these functions were derived for the synthetic jet actuator and successfully compared with experimental hot-wire results. The paper demonstrates a usefulness of the applied definition of the energetic efficiency. Moreover, the advantages of the hybrid synthetic jet actuator were quantified. The hybrid synthetic jet actuator achieves a 15-23% increase in the velocities and a 41-48% increase in the energetic efficiency, both in comparison with the ordinary synthetic jet actuator working at the same input real power.

Název v anglickém jazyce

Energetic efficiencies of synthetic and hybrid synthetic jet actuators driven by electrodynamic transducers

Popis výsledku anglicky

The paper investigates synthetic and hybrid synthetic jet actuators that are based on similar geometries. The actuators are supplied by a harmonic power input and are operated close to the first resonance frequency. An energetic efficiency is applied. The maximal outlet characteristic velocities and efficiencies of both actuators are studied as functions of the input real power. Theoretical approximations of these functions were derived for the synthetic jet actuator and successfully compared with experimental hot-wire results. The paper demonstrates a usefulness of the applied definition of the energetic efficiency. Moreover, the advantages of the hybrid synthetic jet actuator were quantified. The hybrid synthetic jet actuator achieves a 15-23% increase in the velocities and a 41-48% increase in the energetic efficiency, both in comparison with the ordinary synthetic jet actuator working at the same input real power.

Druh

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

CEP obor

BK - Mechanika tekutin

OECD FORD obor

—

Projekt

<a href="/cs/project/GA14-08888S" target="_blank" >GA14-08888S: Řízení proudových polí pomocí oscilací tekutiny</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Experimental Thermal and Fluid Science

ISSN

0894-1777

e-ISSN

—

Svazek periodika

69

Číslo periodika v rámci svazku

December

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

119-126

Kód UT WoS článku

000362859200012

EID výsledku v databázi Scopus

2-s2.0-84940105505