The flow field acting on the fluttering profile, kinematics, forces and total moment

0395751 - ÚT 2014 RIV SG eng J - Journal Article
Kozánek, Jan - Vlček, Václav - Zolotarev, Igor
The flow field acting on the fluttering profile, kinematics, forces and total moment.
International Journal of Structural Stability and Dynamics. Roč. 13, č. 7 (2013), s. 1-7. ISSN 0219-4554. E-ISSN 1793-6764
R&D Projects: GA ČR GA101/09/1522
Institutional support: RVO:61388998
Keywords : fluttering profile * interferometry visualization * acting forces and moment
Subject RIV: JU - Aeronautics, Aerodynamics, Aircrafts
Impact factor: 1.059, year: 2013

A high speed camera was used for interferometry visualization (in different phases of the motion) of the fluuttering NACA0015 profile supported in a translational and rotational manner. First, the simplified mathematical model of the support of investigated profile was identified from minimum least squares differences between modeled and measured system responses. A special graphical Matlab procedure was proposed for evaluation of interferograms. Kinematic analysis defining motion of the profile as a function of time was obtained by a regression using the least squares method. Numerical integration of pressure functions around the airfoil surface allows for calculation of the resulting aerodynamic forces and moments.
Permanent Link: http://hdl.handle.net/11104/0224095