Experimental studies of the formation of zones resulted from air flow around a system of model buildings

Abstract

This paper presents the results of working out the methodology for conducting experimental studies of the flow around the objects modeling the urban environmental conditions. The experiments were conducted in the wind tunnel of the Siberian Federal University. Two objects of different heights imitating buildings were considered the models. Special attention was paid to the study of the flow pattern at the tandem arrangement of model buildings. Visualizing the flow, the low-velocity and high-velocity zones, as well as recirculation areas were identified. At that, these zones had their peculiarities in terms of the direction of flow twisting behind each object. The study allowed revealing that the vortices separating from the edges of the studied objects play a special role in the flow formation.

Impurity propagation in urban area with complex surface relief

“…Here one of the impurity peaks is observed. It can be assumed that, as in Meshkova et al (2022), the unique building configuration leads to the formation of a stagnant zone where the impurity is stored. This area corresponds to a sport stadium, which is used for various sports competitions and public events.…”