Water channel

Flow and turbulence in idealized urban canopies

Flow and turbulence in idealized urban canopies

Flow, turbulence, and dispersion in two- and three-dimensional urban canopies are studied experimentally in a water channel. Velocity measurements are taken using laser velocimetry, while pollutant concentration is measured using image analysis (PLIF).

Indoor Air Pollution

Indoor Air Pollution

The research focuses on the study of air circulation in indoor environments, with particular reference to the measurement of velocity fields and concentrations of chemically passive pollutants originating both from outside the environment and from internal sources. The measurements were conducted using techniques based on laser velocimetry and image analysis.

Urban Ventilation

Urban Ventilation

The research focuses on the study of urban ventilation through laboratory experiments conducted in a hydraulic channel. The aim is to improve knowledge of the effect of trees on streets, and in particular how they interact with wind and pollutants emitted by vehicular traffic. The study is conducted on small-scale models, reproducing both ideal cases and real situations, such as small city neighborhoods.

Pollutant fluxes in two-dimensional street canyons

The turbulent dispersion of a passive tracer emitted by a line source simulating vehicular traffic in an idealized urban canyon in neutral conditions is studied in the water channel by means of simultaneous measurements of velocity and concentration fields. The experiments are conducted for two geometrical arrangements of two-dimensional obstacles reproducing the skimming flow (AR=1) and the wake-interference regime (AR=2), where AR is the canyon aspect ratio.

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