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

Result code in 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>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
VISUALIZATION OF UNSTEADY FLOW AROUND A VIBRATING PROFILE: EXPERIMENTAL SET-UP AND PRELIMINARY TESTS
Original language description
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.
Czech name
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Czech description
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Project
<a href="/en/project/GA101%2F09%2F1522" target="_blank" >GA101/09/1522: Experimental investigation of unsteady flow patterns around vibrating airfoil with application in aeroelasticity</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2009
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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