Investigation of dissipation flow in the urban canyon

سال انتشار: 1394
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 500

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شناسه ملی سند علمی:

JR_AET-1-3_002

تاریخ نمایه سازی: 21 فروردین 1397

چکیده مقاله:

In regard to wind flow in the cities, obtaining a minimal level of pollution in theenvironment is achievable. Different policies have been considered for minimizingurban pollution such as the attachment and/or reduction of building parts like airtraps, ceiling forms, and so on. Due to an increase in population in cities and anincreasing need for housing, the construction of high-rise buildings is inevitable.People are forced to live in high-rise buildings to meet their housing needs and fromlack of urban open spaces. A CFD based software, Envi-met, is used to acquireknowledge concerning the air pollution surrounding the buildings. In this case, wecan approximate that an angle of 30 degrees, in regard to an urban canyon, is thebest angle to dissipate pollution. Also, in an ideal case with imposed changes in theform, we could reduce the problem by better navigation of inside wind of urbancanyons into spaces between blocks of buildings that have the capacity to trap theparticles. Finally, it is found that we may be able to have more optimal results forthe dissipation of pollutants by suitable orientation of blocks in regard to the windflow.

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نویسندگان

Seyyed Hossein Hosseini

Department of Chemical Engineering, Ilam University, Ilam, Iran

Amir Hosein Peyman Rad

Department of Architecture, Ilam University, Ilam, Iran

Eslam Kashi

Department of Chemical Technologies, Iranian Research Organization for Science and Technology (IROST), Tehran,Iran