Street scale turbulent flow: pollutant dispersion —Jian Zhong (University of Birmingham)

This video shows how the canyon geometry (the aspect ratio of building height to street width) influences the turbulent airflow structure and how the turbulent airflow transports pollutants in an urban street canyon environment. Deep canyon (with higher aspect ratio) leads to poor ventilation and worst pollution.

https://downloads.sms.cam.ac.uk/4028455/4028463.mp4