Torque and Flow Field Optical Measurements of The Single Blade Under Stall Flutter

0549555 - ÚT 2022 RIV CZ eng C - Conference Paper (international conference)
Procházka, Pavel P. - Uruba, Václav - Šnábl, Pavel
Torque and Flow Field Optical Measurements of The Single Blade Under Stall Flutter.
Dynamics of Machines and Mechanical Systems with Interactions, DYMAMESI 2021. Praha: Institute of Thermomechanics Academy of Sciences of the Czech Republic, v. v. i., 2021 - (Zolotarev, I.; Pešek, L.; Kozień, M.), s. 73-76. ISBN 978-80-87012-75-8.
[DYMAMESI 2021. Cracow - Prague (CZ), 02.03.2021-03.03.2021]
R&D Projects: GA ČR(CZ) GA20-26779S
Institutional support: RVO:61388998
Keywords : blade cascade * time-resolved PIV * FFT * torque
OECD category: Applied mechanics

The single blade NACA0010 was exposed to the incoming flow inside a channel with rectangular cross-section. The blade was investigated for three different working regimes. The first configuration was for fixed blade. The second regime was for fluttering blade due to flow instabilities and the last one was performed for blade under force excitation. The flow field was measured using Particle Image Velocimetry. A force transducer and a small rotary encoder were used to evaluate the force ratios.
Permanent Link: http://hdl.handle.net/11104/0327284