About: Investigation of interunit dispersion in 2D street canyons: A scaled outdoor experiment

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An Entity of Type : schema:ScholarlyArticle, within Data Space : covidontheweb.inria.fr associated with source document(s)

Attributes	Values
type	Academic Article research paper schema:ScholarlyArticle
isDefinedBy	Covid-on-the-Web dataset
has title	Investigation of interunit dispersion in 2D street canyons: A scaled outdoor experiment
Creator	Zhang, Yong Cui, Dongjin Dai, Yuwei Hang, Jian Cheuk, Ming Mak,
topic	covid:4f50e0628130f198b5cf0cb3834aa3e66e292b8a#this
Source	Elsevier; Medline; PMC
abstract	Interunit dispersion problems have been studied previously mainly through on-site measurements, wind tunnel tests, and CFD simulations. In this study, a scaled outdoor experiment was conducted to examine the interunit dispersion characteristics in consecutive two-dimensional street canyons. Tracer gas ([Formula: see text]) was continuously released to simulate the pollutant dispersion routes between the rooms in street canyons. The wind velocity, wind direction, air temperature, and tracer gas concentrations were monitored simultaneously. Two important parameters, the air exchange rate and reentry ratio, were analyzed to reveal the ventilation performance and interunit dispersion of the rooms in the street canyons. Based on the real-time weather conditions, it was found that the ventilation performance of the source room varied according to the room location. The air exchange rate distribution of the leeward-side room was more stable than that of the windward side. The tracer gas was mainly transported in the vortex direction inside the street canyon, and the highest reentry ratio was observed at the room nearest to the source room along the transportation route. In addition, under real weather conditions, the rooms in the street canyon have a high probability of experiencing a high reentry ratio based on the maximum reentry ratio of each room. This study provides authentic airflow and pollutant dispersion information in the street canyons in an urban environment. The dataset of this experiment can be used to validate further numerical simulations.
has issue date	2020-03-15(xsd:dateTime)
bibo:doi	10.1016/j.buildenv.2020.106673
bibo:pmid	32287993
has license	no-cc
sha1sum (hex)	4f50e0628130f198b5cf0cb3834aa3e66e292b8a
schema:url	https://doi.org/10.1016/j.buildenv.2020.106673
resource representing a document's title	Investigation of interunit dispersion in 2D street canyons: A scaled outdoor experiment
has PubMed Central identifier	PMC7116958
has PubMed identifier	32287993
schema:publication	Build Environ
resource representing a document's body	covid:4f50e0628130f198b5cf0cb3834aa3e66e292b8a#body_text
is http://vocab.deri.ie/void#inDataset of	proxy:http/ns.inria.fr/covid19/4f50e0628130f198b5cf0cb3834aa3e66e292b8a
is schema:about of	named entity 'stable' named entity 'reveal' named entity 'reentry' named entity 'ventilation' covid:arg/4f50e0628130f198b5cf0cb3834aa3e66e292b8a named entity 'ventilation' named entity 'simultaneously' named entity 'validate' named entity 'performance' named entity 'distribution' named entity 'direction' named entity 'tracer gas' named entity 'dispersion' named entity 'wind velocity' named entity 'measurements' named entity 'reentry' named entity 'pollutant' named entity 'released' named entity 'street canyon' named entity 'pollutant' named entity 'weather conditions' named entity 'tracer gas' named entity 'on-site' named entity 'pollutant' named entity 'street canyon' named entity 'street canyon' named entity 'tracer gas' named entity 'tracer gas' named entity 'well-mixed' named entity 'reentry' named entity 'Japan' named entity 'pollutant' named entity 'wind tunnel' named entity 'turbulent flow' named entity 'thermal expansion coefficient' named entity 'street canyon' named entity 'tracer gas' named entity 'BL2' named entity 'street canyon' named entity 'sun' named entity 'public health' named entity 'velocity' named entity 'IAQ' named entity 'wind profile' named entity 'perpendicular' named entity 'urban environment' named entity 'driving force' named entity 'concrete' named entity 'Guangzhou' named entity 'street canyon' named entity 'human health' named entity 'ACH' named entity 'street canyon' named entity 'urban environments' named entity 'reentry' named entity 'street canyon' named entity 'velocity' named entity 'Computational Fluid Dynamics' named entity 'flu season' named entity 'ACH' named entity 'street canyon' named entity 'natural ventilation' named entity 'pollutant' named entity 'reentry' named entity 'CFD' named entity 'air temperature' named entity 'BL2' named entity 'street canyon' named entity 'tracer gas' named entity 'vortex' named entity 'windward and leeward' named entity 'wind effect' named entity '1:0' named entity 'tracer gas'

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