Numerical calculations of aerial dispersion from elevated sources

D. Adair

doi:10.1016/0307-904X(90)90170-A

Numerical calculations of aerial dispersion from elevated sources

D. Adair

Department of Mechanical and Aerospace Engineering

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

Calculations of the dispersal of a nonbuoyant passive scalar emanating from an isolated chimney stack immersed in a turbulent boundary layer have been made. The numerical predictions were obtained by means of a Reynolds-averaged Navier-Stokes calculation method using a three-dimensional computation domain. The height of the stack was varied, and for one of the flows a building was present downstream of the source. Predictions of concentration distribution at ground level were compared with measurements obtained during scaled wind tunnel experiments. The results obtained by using the Reynolds-averaged Navier-Stokes calculation method were generally found to be in good agreement with the experimental values.

Original language	English
Pages (from-to)	459-467
Number of pages	9
Journal	Applied Mathematical Modelling
Volume	14
Issue number	9
DOIs	https://doi.org/10.1016/0307-904X(90)90170-A
Publication status	Published - Sep 1990

Keywords

atmospheric pollution
gas dispersion
steady flows

ASJC Scopus subject areas

Modelling and Simulation
Applied Mathematics

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10.1016/0307-904X(90)90170-A

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title = "Numerical calculations of aerial dispersion from elevated sources",

abstract = "Calculations of the dispersal of a nonbuoyant passive scalar emanating from an isolated chimney stack immersed in a turbulent boundary layer have been made. The numerical predictions were obtained by means of a Reynolds-averaged Navier-Stokes calculation method using a three-dimensional computation domain. The height of the stack was varied, and for one of the flows a building was present downstream of the source. Predictions of concentration distribution at ground level were compared with measurements obtained during scaled wind tunnel experiments. The results obtained by using the Reynolds-averaged Navier-Stokes calculation method were generally found to be in good agreement with the experimental values.",

keywords = "atmospheric pollution, gas dispersion, steady flows",

author = "D. Adair",

note = "Funding Information: This study was jointly funded by the Departmento f Trade and Industry and by British Nuclear Fuels plc. The helpful discussionsw ith Dr. S. Singh concerning the experimentalp hase is gratefully acknowledged.",

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N2 - Calculations of the dispersal of a nonbuoyant passive scalar emanating from an isolated chimney stack immersed in a turbulent boundary layer have been made. The numerical predictions were obtained by means of a Reynolds-averaged Navier-Stokes calculation method using a three-dimensional computation domain. The height of the stack was varied, and for one of the flows a building was present downstream of the source. Predictions of concentration distribution at ground level were compared with measurements obtained during scaled wind tunnel experiments. The results obtained by using the Reynolds-averaged Navier-Stokes calculation method were generally found to be in good agreement with the experimental values.

AB - Calculations of the dispersal of a nonbuoyant passive scalar emanating from an isolated chimney stack immersed in a turbulent boundary layer have been made. The numerical predictions were obtained by means of a Reynolds-averaged Navier-Stokes calculation method using a three-dimensional computation domain. The height of the stack was varied, and for one of the flows a building was present downstream of the source. Predictions of concentration distribution at ground level were compared with measurements obtained during scaled wind tunnel experiments. The results obtained by using the Reynolds-averaged Navier-Stokes calculation method were generally found to be in good agreement with the experimental values.

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KW - gas dispersion

KW - steady flows

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