CARACTERIZATION OF THE TURBULENT BOUNDARY LAYER WITH AN ATMOSPHERIC WIND TUNNEL: PRELIMINARY RESULTS |
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| Gilder Nader, Edson Roberto Marciotto, Amaur. Pereira Oliveira, Paulo Jarbado, Marcos Tadeu Pereira |
- Abstract:
- We have performed some measurements to characterize an atmospheric wind tunnel at the Institute for Technological Research (IPT) and then some question related to environmental pollution were investigated. We determined the roughness length z0, and friction velocity u*, based on vertical velocity profiles and an estimate of inertial sub-layer thickness was obtained by assuming that within it z0 and u* are almost constant. The influence of floor roughness configurations and the presence or not of vortex generators were taken into account. The study of spectra of times series and velocity field within a urban canyon model are consistent with the literature.
- Keywords:
- atmospheric wind tunnel, boundary layer, velocity profile, spectral analysis, flow field
- Download:
- PWC-2006-TC19-003u.pdf
- DOI:
- -
- Event details
- Event name:
- XVIII IMEKO World Congress
- Title:
Metrology for a Sustainable Development
- Place:
- Rio de Janeiro, BRAZIL
- Time:
- 17 September 2006 - 22 September 2006