Evaluation of CFD for simulating air pollutant dispersion around buildings

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3 Citations (Scopus)

Abstract

The distribution of air pollutant concentrations around buildings is a main concern of building and air-conditioning engineers that design the ventilation inlets and outlets on building facades or roofs. CFD is increasingly used to predict air flow and related processes around buildings. In this paper, some possibilities and limitations of CFD for simulating air pollutant dispersion around buildings are discussed. The focus is on dispersion around an isolated building, as the generic basic case for dispersion in the urban environment. The advantages and disadvantages of RANS and LES are briefly described, and results from different authors for three different cases are compared and discussed. It is shown that even for the case of an isolated building, considerable difficulties exist and that CFD is not yet at a stage where it can be used as a stand-alone practical engineering tool for pollutant dispersion modeling.
Original languageEnglish
Title of host publicationASHRAE Annual Conference, Albuquerque, USA
Place of PublicationUSA
PublisherAmerican Society of Heating, Refrigerating and Air-Conditioning Engineers
Pages1-11
Publication statusPublished - 2010
Eventconference; ASHRAE Annual Conference; 2010-06-26; 2010-06-30 -
Duration: 26 Jun 201030 Jun 2010

Conference

Conferenceconference; ASHRAE Annual Conference; 2010-06-26; 2010-06-30
Period26/06/1030/06/10
OtherASHRAE Annual Conference

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