The prediction of the probability density function (PDF) of a pollutant concentration within
atmospheric flows is of primary importance in estimating the hazard related to accidental …

We review the efforts made by the scientific community in more than seventy years to
elucidate the behaviour of concentration fluctuations arising from localized atmospheric …

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 …

In this paper, a review of the Lagrangian stochastic models developed in the last decades
for the simulation of the concentration–fluctuation dispersion is presented. The main …

Atmospheric dispersion models are widely used to predict the potential for annoyance of
odour emissions. It is well established that the predictive accuracy of these models is higher …

Large-eddy simulation (LES) experiments have been performed using the Parallelized LES
Model (PALM). A methodology for validating and understanding LES results for plume …

Geometry modeling is a common approach in pollutant dispersion studies. Block typology is
a key element for representing geometries closer to real city environments. However, urban …

A neutral boundary layer was generated in the laboratory to analyze the mean velocity field
and the turbulence field within and above an array of two-dimensional obstacles simulating …

We propose a new formulation for the wind-speed profile in the urban boundary layer, which
can be viewed as a generalisation of the commonly used logarithmic law. The model is …

The aim of this work is to investigate how both the orientation of the urban canyon and the
modeling of the edge effects (ie urban canyons of finite length) are important in the …