Effect of the Instabilities in the Overlying Atmospheric Boundary Layer on the Street Canyon Ventilation
Publication Type:
Conference
Authors:
Co-Authors:
Ordonez, J.
Year Published:
2019
Abstract:
Human
health and air quality in urban areas are important problems that are linked to
the pollution dispersion and ventilation capacity of urban streets. The ventilation
mechanism and transfer process within urban streets is in strong connection with
the instabilities in the overlying atmospheric boundary layer. In this study, we aim
to use computational modelling to investigate the coupling between the flow within
three-dimensional urban canyons and the turbulent structures in the above canyon
flow. The state of the atmospheric boundary layer over an idealized urban area is
controlled by the condition of the upstream topography. The transport phenomena
in urban canyons is examined under different upstream conditions to reveal the
ventilation mechanism in urban areas.
Conference Name:
72nd Annual Meeting of the APS Division of Fluid Dynamics
Conference Location:
Seattle, Wahington
Other Numbers:
volume 63, number 13
Refereed Designation:
Date Published:
11/25/2019