Cities are facing significant challenges due to low outdoor air quality. Hence, a growing
number of studies have been conducted to develop strategies for improving air quality. This …

Air pollutants emitted from vehicles in street canyons may be reactive, undergoing mixing
and chemical processing before escaping into the overlying atmosphere. The deterioration …

Abstract The Reynolds number independence (Re independence) criterion of Re> 11,000 is
widely adopted to fulfill the dynamic similarity between the urban flow modeling and the …

Atmospheric flow and temperature dynamics in the urban roughness sublayer exhibit
numerous complexities that cannot all be investigated using models or scaled-down …

In the present work, a boundary layer developing over a rough-wall consisting of staggered
cubes with a plan area packing density λ p= 25% is studied within the wind tunnel using …

The influence of roof-edge roughness elements on airflow, heat transfer, and street-level
pollutant transport inside and above a two-dimensional urban canyon is analyzed using an …

Highlights•Wind pressure coefficients of single-span greenhouses on reclaimed land
measured in wind tunnel.•Building type, design factors and wind direction were …

In this work we investigate the influence of real world conditions, including heterogeneity
and natural variability of background wind, on the air flow and pollutant concentrations in a …

Because of their structures, urban areas induce very complex airflow in the roughness
sublayer while it notably impacts on urban microclimates, ventilation potential, pedestrian …

Particle emissions derived from construction activities have a significant impact on the local
air quality, while the canyon effect with reduced natural ventilation contributes to the highest …