Effective hydraulic resistance of actuator nozzle generating a periodic jet

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F12%3A00376617" target="_blank" >RIV/61388998:_____/12:00376617 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.sna.2012.03.014" target="_blank" >http://dx.doi.org/10.1016/j.sna.2012.03.014</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.sna.2012.03.014" target="_blank" >10.1016/j.sna.2012.03.014</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effective hydraulic resistance of actuator nozzle generating a periodic jet

Popis výsledku v původním jazyce

Because of nonlinearity of characteristics of nozzles, their effective hydraulic resistance when generating periodically pulsating jet is higher than the steady-flow value. Author investigated this effect in experiments with a nozzle supplied with superposed steady flow and a pulsation generated by piston-type pulsator, and found deviations from the predictions based on mere nonlinearity. The disagreement is explained by fluid accumulation due to its compressibility in the actuator cavity upstream fromthe nozzle. Two mathematical models of the periodic accumulation processes were set up. The experimental data are located between the results of these models. The final outcome of this study is a law of universal validity for design of actuators with periodic flows in nozzles.

Název v anglickém jazyce

Effective hydraulic resistance of actuator nozzle generating a periodic jet

Popis výsledku anglicky

Because of nonlinearity of characteristics of nozzles, their effective hydraulic resistance when generating periodically pulsating jet is higher than the steady-flow value. Author investigated this effect in experiments with a nozzle supplied with superposed steady flow and a pulsation generated by piston-type pulsator, and found deviations from the predictions based on mere nonlinearity. The disagreement is explained by fluid accumulation due to its compressibility in the actuator cavity upstream fromthe nozzle. Two mathematical models of the periodic accumulation processes were set up. The experimental data are located between the results of these models. The final outcome of this study is a law of universal validity for design of actuators with periodic flows in nozzles.

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

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2012

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

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Svazek periodika

179

Číslo periodika v rámci svazku

JUN 2012

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

12

Strana od-do

211-222

Kód UT WoS článku

000304077100030

EID výsledku v databázi Scopus

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