Physio-chemical modeling of the NO_(x)-O_(3) photochemical cycle and the air pollutants’ reactive dispersion around an isolated building
作者机构：Department of Civil and Environmental EngineeringThe Hong Kong University of Science and TechnologyClear Water BayKowloonHong KongChina Future Cities Lab GlobalSingapore-ETH CentreSingapore 138602 Department of BuildingCivil and Environmental Engineering at Concordia UniversityMontrealQuebecCanada Department of Mechanical EngineeringThe University of Hong KongPok-fu-lam RoadHong KongChina Department of Civil EngineeringChongqing UniversityChongqingChina School of Atmospheric SciencesSun Yat-sen UniversityZhuhaiChina
出 版 物：《建筑模拟(英文)》 (Building Simulation)
年 卷 期：2023年第16卷第9期
页 面：1735-1758页
核心收录：
学科分类：0830[工学-环境科学与工程（可授工学、理学、农学学位）] 07[理学] 070602[理学-大气物理学与大气环境] 0706[理学-大气科学] 0812[工学-计算机科学与技术（可授工学、理学学位）]
基 金：The work described in this paper was supported by the Research Grants Council of the Hong Kong Special Administrative Region,China(Project No.C7064-18G) Research Grants Council of the Hong Kong Special Administrative Region,China(Project No.16207118 and No.16211821) This work is also partly supported by the Natural Science Foundation of Chongqing,China(Project No.cstc2019jcyj-msxmX0565 and No.cstc2020jcyj-msxmX0921) the Key Project of Technological Innovation and Application Development in Chongqing(Project No.cstc2019jscxgksbX0017) the Innovation Group Project of Southern Marine Science and Engineering Guangdong Laboratory(Project No.311020001)
主 题：reactive pollutant dispersion NO_(x)-O_(3)cycle air pollution isolated building physio-chemical modelling
摘 要：A numerical physio-chemical model of the NO_(x)-O_(3) photochemical cycle in the near-wake region of an isolated residential/office building has been presented in this *** investigation delves into the dispersion of reactive air pollutants through the lens of fluid phenomenology and its impact on chemical reactivity,formation,transport,deposition,and *** fluid dynamics(CFD)simulations were conducted for the ground-point-source(GES)and roof-pointsource(RES)*** show that the Damköhler number(Da),which quantifies pollutants’physio-chemical timescales,displays a strong inverse proportionality with the magnitude and spread of NO–increasing Da reduces human exposure to the toxic NO and NO_(2) *** different wind directions were considered,the dispersion range of NO exhibited varying shrinking directions as Da ***,as Da increases,the concentration ratio KNO_(2)/KNO_(x),which quantifies the production of NO_(2) resulting from NO depletion,forms sharp high-low gradients near emission *** GES,the dispersion pattern is governed by the fluid’s phenomenological *** RES,the intoxicated area emanates from the building’s leading-edge,with the lack of shielding inhibiting pollutant interactions in the near-wake,resulting in scant physio-chemical *** NO_(2)/NO_(x) distribution follows a self-similar,stratified pattern,exhibiting consistent layering gradients and attributing to the natural deposition of the already-reacted pollutants rather than in-situ *** the end,building design guidelines have been proposed to reduce pedestrian and resident exposure to NO_(x)-O_(3).
维普期刊数据库