id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-335644-gt1ey9wz	Wang, Weiwen	Air ventilation assessment under unstable atmospheric stratification — A comparative study for Hong Kong	2018-02-15		.txt	text/plain	7907	395	52	This study is devoted to addressing this knowledge gap by cross-comparisons of field measurements, wind tunnel tests, and large-eddy simulations (LES) under neutral and unstable conditions. When thermal conditions, specifically unstable stratification, are considered in ventilation, there will be additional challenges: First, a larger model domain is required to catch the larger turbulent structures in unstable simulations than in the neutral condition, while the grid size has to be kept small to sufficiently resolve the street-level air flows [19] . The objective of this study is to demonstrate the knowledge gap between current practices and reality by comparing wind tunnel test results, field measurements, and a pair of LES experiments in Hong Kong, and to propose possible adaptations for future AVA practices based on the comparative results and knowledge of atmospheric boundaries under various conditions. In this case study, we cross-compare pedestrian-level VR taken from field measurements, wind tunnel tests, and a pair of LES experiments in a high-density area of Hong Kong.	./cache/cord-335644-gt1ey9wz.txt	./txt/cord-335644-gt1ey9wz.txt