The flow field acting on the fluttering profile, measurements and evaluation

0369031 - ÚT 2012 RIV PL eng C - Conference Paper (international conference)
Kozánek, Jan - Vlček, Václav - Zolotarev, Igor
The flow field acting on the fluttering profile, measurements and evaluation.
Dynamical system. Lodž: Department of Automation and Biomechanics, 2011 - (Awrejcewicz, J.; Kazmierczak, P.; Olejnik, P.; Mrozowski, J.), s. 283-288. ISBN 978-83-7283-447-8.
[Conference on Dynamical System /11./. Lodž (PL), 05.12.2011-08.12.2011]
R&D Projects: GA ČR GA101/09/1522
Institutional research plan: CEZ:AV0Z20760514
Keywords : fluttering profile * interferograms * kinematics * aerodynamic forces and moments
Subject RIV: BI - Acoustics

A high speed camera was used for the interferometry visualization (in different phases of the motion) of the fluttering NACA0015 profile supported in a translation and rotational manner. Firstly, the simplified mathematical model of the support of investigated profile was identified from minimum least squares differences between modeled and measured system responses. The special graphical Matlab procedure was proposed for the evaluation of interferograms. The kinematic analysis defined the profile motion as the function of time was obtained by the harmonic regression. With the help of the numerical integration of the pressure on the airfoil surface can be calculated the resulting aerodynamic forces and moments.
Permanent Link: http://hdl.handle.net/11104/0203201