Abstract
This paper presents two-dimensional ow around NACA0012 in a periodic flow with a sinusoidal velocity profile in the streamwise direction. The measurement is conducted in water tunnel under Reynolds number Re = 3000, reduced frequency k = 2.27 and angle of attack 15°. The phase-averaged velocity field is measured by using Particle Image Velocimetry (PIV). It is found that high phase turbulent intensity points are observed on the separation/reattachment points in one period.
