Buoyancy effects on the flows around flat and steep street canyons in simplified urban settings subject to a neutral approaching boundary layer: Wind tunnel PIV measurements

• Published in: The Science of the total environment Vol. 797; p. 149067
• Main Authors: Zhao, Yongling, Li, Haiwei, Kubilay, Aytaç, Carmeliet, Jan
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 25.11.2021
• Subjects: air; Air exchange; canopy; environment; Isothermal and non-isothermal flows; particle image velocimetry; Steepness ratio; Street canyons; wind; Wind tunnel; wind tunnels; Street canyons; Wind tunnel; Steepness ratio; Isothermal and non-isothermal flows; Air exchange

The present wind tunnel particle image velocimetry (PIV) measurements document flows around flat and steep street canyons subject to thermal conditions at different levels, ranging from the Richardson number of 0.31 to 2.07. A steepness ratio, that is, the ratio of windward and leeward building heig...