CONICET | Buscador de Institutos y Recursos Humanos

Many studies on wind engineering require the use of different types of statistical analysis associated to the phenomenology of boundary layer flows. The turbulence spectrum is the main physical parameter used to compare the velocity fluctuation characteristics of atmospheric and laboratory flows in Wind Load Modeling. However, some difficulties, related to the determination of the inertial range extent, choice of characteristic velocity and length scales parameters and possible effects due to the finiteness of the Reynolds number arise in wind tunnel studies, specially, when simulations are performed at low velocities. A complementary study taking into account the use of local scale based Reynolds number, inertial and dissipation range characteristic scales, control of sampling frequency and post-processing filtering is proposed. Selected data sets obtained under distinct configurations of three wind tunnels, a smooth pipe and atmospheric boundary layer are used. In addition, a different class of spectral representation proposed by Gagne, which is based on local similarities and compatible with the multifractal formalism, is compared to traditional approaches.