Preliminary interferometry measurements of flow field around a fluttering NACA0015 profile

0343363 - ÚT 2011 RIV CZ eng, cze C - Konferenční příspěvek (zahraniční konf.)
Vlček, Václav - Kozánek, Jan
Preliminary interferometry measurements of flow field around a fluttering NACA0015 profile.
Engineering Mechanics 2010. Prague: Institute of Thermomechanics AS CR, v. v. i., 2010 - (Zolotarev, I.), s. 167-168. ISBN 978-80-87012-26-0.
[Engineering Mechanics 2010. Svratka (CZ), 10.05.2010-13.05.2010]
Grant CEP: GA ČR GA101/09/1522
Výzkumný záměr: CEZ:AV0Z20760514
Klíčová slova: interferometry * flow field * measurements
Kód oboru RIV: BI - Akustika a kmity
www.engmech.cz

The paper presents experimental results of the optical measurements of flow field around a fluttering NACA0015 profile elastically supported with two degrees of freedom in subsonic wind flow. The high-speed camera was used for the interferometry visualization of the airflow in different phases of the profile motion. Special care was devoted to the plotting of the fringes near the surface of the profile, which was blurry due to the fast vibration. Examples of the interferograms, pressure and velocity development around the surface of the vibrating body and the phase shift between rotation and translation cycles are presented.
Trvalý link: http://hdl.handle.net/11104/0185862