Modifications of Highway Air Pollution Models for Complex Site Geometrics (Canyon Plume Box Model [CPB 3.6])
Year: 2002
Type: article
Abstract: This TechBrief announces the two volumes in this series documenting the study entitled "Modifications of Highway Air Pollution Models for Complex Site Geometries": Modifications of Highway Air Pollution Models for Complex Site Geometries, Volume I: Data Analyses and Model Development and Volume II: Wind Tunnel Test Program (Publication Nos. FHWA-RD-02-036 and -037). This study's purpose was the evaluation of the limitations of flat, open terrain highway air pollution dispersion models for complex site geometries such as found within semi-confined spaces, such as highway cut-sections and street canyons. This included the development of modifications or the refinement of existing models or new models applicable to these situations and more appropriate than open terrain, straight-line highway air pollutant models, typically represented by Gaussian plume formulations. A major component of this study involved an extensive wind tunnel measurement program of the flows, turbulent velocity variances, and concentration fields within a wide range of street canyon and highway cut-section geometries. This wind tunnel study was undertaken at Boston University's fluid modeling facility and was designed to clarify the basic phenomena that control atmospheric dispersion in these complex flow environments, such as street canyons, and to provide the data needed for the development of an applicable pollutant dispersion model. Model refinements were carried out by a subcontractor with a well-established model for such semi-confined environments.\n
Source: ROSA P
Authors: Richard E. Hayden, R. J. Yamartino, George P. Succi
Language: English
Topic: Wind and Air Flow Studies
Subfield: Environmental Engineering
Field: Environmental Science
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W3201619238