Determination of frequencies of oscillations of cloud cavitation on a 2-D hydrofoil from high-speed camera observations

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F16%3A00460682" target="_blank" >RIV/61388998:_____/16:00460682 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216305:26220/16:PU120518

Výsledek na webu

<a href="http://ac.els-cdn.com/S1001605816606406/1-s2.0-S1001605816606406-main.pdf?_tid=dee3b8f4-4a62-11e6-9d83-00000aacb361&acdnat=1468570098_ce8b727c766e0f96ee20d505e7058102" target="_blank" >http://ac.els-cdn.com/S1001605816606406/1-s2.0-S1001605816606406-main.pdf?_tid=dee3b8f4-4a62-11e6-9d83-00000aacb361&acdnat=1468570098_ce8b727c766e0f96ee20d505e7058102</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/S1001-6058(16)60640-6" target="_blank" >10.1016/S1001-6058(16)60640-6</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Determination of frequencies of oscillations of cloud cavitation on a 2-D hydrofoil from high-speed camera observations

Popis výsledku v původním jazyce

A method is presented to determine significant frequencies of oscillations of cavitation structures from high-speed camera recordings of a flow around a 2-D hydrofoil. The top view of the suction side of an NACA 2412 hydrofoil is studied in a transparent test section of a cavitation tunnel for selected cloud cavitation regimes with strong oscillations induced by the leading-edge cavity shedding. The ability of the method to accurately determine the dominant oscillation frequencies is confirmed by pressure measure- ments. The method can resolve subtle flow characteristics that are not visible to the naked eye. The method can be used for non- invasive experimental studies of oscillations in cavitating flows with adequate visual access when pressure measurements are not available or when such measurements would disturb the flow.

Název v anglickém jazyce

Determination of frequencies of oscillations of cloud cavitation on a 2-D hydrofoil from high-speed camera observations

Popis výsledku anglicky

A method is presented to determine significant frequencies of oscillations of cavitation structures from high-speed camera recordings of a flow around a 2-D hydrofoil. The top view of the suction side of an NACA 2412 hydrofoil is studied in a transparent test section of a cavitation tunnel for selected cloud cavitation regimes with strong oscillations induced by the leading-edge cavity shedding. The ability of the method to accurately determine the dominant oscillation frequencies is confirmed by pressure measure- ments. The method can resolve subtle flow characteristics that are not visible to the naked eye. The method can be used for non- invasive experimental studies of oscillations in cavitating flows with adequate visual access when pressure measurements are not available or when such measurements would disturb the flow.

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/GA13-23550S" target="_blank" >GA13-23550S: Experimentální výzkum a matematické modelování nestacionárních jevů při hydrodynamické kavitaci</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

Journal of Hydrodynamics

ISSN

1001-6058

e-ISSN

—

Svazek periodika

28

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

CN - Čínská lidová republika

Počet stran výsledku

10

Strana od-do

369-378

Kód UT WoS článku

000379107000003

EID výsledku v databázi Scopus

2-s2.0-84976534243