Abstract
Fluctuating velocity in the near wake of a rectangular parallelepiped was analyzed by wavelet transform as well as fast fourier transform. Monet wavelet was used as a mother wavelet. In this paper, we focus on characteristics of fluctuating velocity at three different points; in outer region of wake, in middle region and in stagnant region behind the object. It is shown that relations between predominant fluctuation and secondary fluctuation of high frequency are quite different at each point.
