globalchange  > 气候变化与战略
DOI: 10.1016/j.atmosenv.2020.117608
论文题名:
Modeling lateral plume deflection in the wake of an elongated building
作者: Monbureau E.M.; Heist D.K.; Perry S.G.; Tang W.
刊名: Atmospheric Environment
ISSN: 1352-2310
出版年: 2020
卷: 234
语种: 英语
英文关键词: Buildings ; Large eddy simulation ; Pollution ; Sensitivity analysis ; Building dimensions ; Building downwashs ; Dispersion patterns ; Ground level concentrations ; Plume deflection ; Pollutant concentration ; Rectangular Buildings ; SIMPLE algorithm ; Wakes ; algorithm ; atmospheric pollution ; atmospheric transport ; building ; deflection ; dispersion ; large eddy simulation ; plume ; pollutant transport ; sensitivity analysis ; wake ; algorithm ; article ; effluent ; plume ; sensitivity analysis ; simulation
学科: AERMOD ; Building wake ; Dispersion ; Downwash ; LES ; Modeling
中文摘要: The plume dispersion model AERMOD provides an efficient method for modeling ground-level pollutant concentrations in wakes of buildings. In recent years, several studies have shown that the downwash algorithms within AERMOD often perform poorly in certain applications. Some studies have proposed modifications to the downwash algorithm in AERMOD to bring the model closer to representing the underlying physical processes associated with building downwash and closer to more accurately modeling observed pollutant concentrations. One such study by Monbureau et al. (2018)made changes to the model that significantly improved its ability to model ground level concentrations for a simple case of a single rectangular building with an elevated, effluent-emitting stack experiencing winds perpendicular to the upwind side of the building. The present study introduces a simple algorithm to enhance AERMOD's ability to appropriately match the dispersion pattern in the complex flow case of non-orthogonal winds. This algorithm, which is based on a rich set of Large-Eddy Simulations (LES), applies to a variety of building dimensions, stack locations, and stack heights. A sensitivity analysis demonstrates how additional modifications to the downwash algorithm may further improve AERMOD in modeling the spatial location of observed ground-level effluent. © 2020 Elsevier Ltd
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/160278
Appears in Collections:气候变化与战略

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作者单位: Jacobs Technology Inc., Research Triangle ParkNC, United States; U.S. Environmental Protection Agency (EPA), Office of Research and Development, National Exposure Research Laboratory, Research Triangle ParkNC, United States; General Dynamics Information Technology, Research Triangle ParkNC, United States

Recommended Citation:
Monbureau E.M.,Heist D.K.,Perry S.G.,et al. Modeling lateral plume deflection in the wake of an elongated building[J]. Atmospheric Environment,2020-01-01,234
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