VISUALIZATION OF UNSTEADY FLOW AROUND A VIBRATING PROFILE: EXPERIMENTAL SET-UP AND PRELIMINARY TESTS

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F09%3A00332394" target="_blank" >RIV/61388998:_____/09:00332394 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

VISUALIZATION OF UNSTEADY FLOW AROUND A VIBRATING PROFILE: EXPERIMENTAL SET-UP AND PRELIMINARY TESTS

Popis výsledku v původním jazyce

The contribution presents the designed aeroelastic model, experimental set-up and preliminary tests of optical measurements of flow field around a vibrating NACA 0017 profile elastically supported in the measurement section of the wind tunnel. The profile can vibrate with two degrees of freedom for translation and rotation. The interferometry method combined with the high speed filming was used for flow visualization of in different phases of the profile motion. The measurements were performed in a subsonic wind tunnel above the airflow velocity for loss of the system stability by flutter, thus the vibration amplitudes were relatively large up to about 7 mm for vertical translation and 16.5 degrees for angle of rotation around the elastic axis. The 52images of the flow field were recorded during one oscillation period of the profile from which the pressure and velocity can be evaluated in the given time instants.

Název v anglickém jazyce

VISUALIZATION OF UNSTEADY FLOW AROUND A VIBRATING PROFILE: EXPERIMENTAL SET-UP AND PRELIMINARY TESTS

Popis výsledku anglicky

The contribution presents the designed aeroelastic model, experimental set-up and preliminary tests of optical measurements of flow field around a vibrating NACA 0017 profile elastically supported in the measurement section of the wind tunnel. The profile can vibrate with two degrees of freedom for translation and rotation. The interferometry method combined with the high speed filming was used for flow visualization of in different phases of the profile motion. The measurements were performed in a subsonic wind tunnel above the airflow velocity for loss of the system stability by flutter, thus the vibration amplitudes were relatively large up to about 7 mm for vertical translation and 16.5 degrees for angle of rotation around the elastic axis. The 52images of the flow field were recorded during one oscillation period of the profile from which the pressure and velocity can be evaluated in the given time instants.

Druh

D - Stať ve sborníku

CEP obor

BI - Akustika a kmity

OECD FORD obor

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Projekt

<a href="/cs/project/GA101%2F09%2F1522" target="_blank" >GA101/09/1522: Experimentální výzkum nestacionárních proudových polí v okolí kmitajícího profilu křídla s aplikacemi v aeroelasticitě</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2009

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings Interaction and Feedbacks 2009

ISBN

978-80-87012-23-9

ISSN

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e-ISSN

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Počet stran výsledku

9

Strana od-do

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Název nakladatele

Ústav termomechaniky AV ČR, v. v. i.

Místo vydání

Praha

Místo konání akce

Praha

Datum konání akce

24. 11. 2009

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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