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http://dx.doi.org/10.3795/KSME-B.2011.35.2.169

Numerical Investigation of Pollutant Dispersion in a Turbulent Boundary Layer by Using Lattice Boltzmann-Subgrid Model  

Shin, Myung-Seob (Dept. of Mechanical Engineering, Hanyang Univ.)
Byun, Sung-Jun (Dept. of Mechanical Engineering, Hanyang Univ.)
Kim, Joon-Hyung (Dept. of Mechanical Engineering, Hanyang Univ.)
Yoon, Joon-Yong (Division of Mechanical and Management Engineering, Hanyang Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.35, no.2, 2011 , pp. 169-178 More about this Journal
Abstract
The dispersion of a pollutant in a turbulent boundary layer has been described in this study by using a two-dimensional lattice Boltzmann method (LBM) and the Smagorinsky sub-grid-scale (SGS) model. The scalar transport equation corresponding to the pollutant concentration is adopted; the pollutant is considered to be in a continuous phase. The pollutant source is classified as ground-level source (GLS) and elevated-point source (ES). Air velocity and particle concentration profile for the pollutant are compared with the respective results and profiles obtained in the experiments of Fackrell and Robins (1982) and Raupach and Legg (1983). The numerical results obtained in this study, i.e., the simulation and the experimental data for the mean flow velocity profiles and the pollutant concentration profiles, are in good agreement with each other.
Keywords
Two-Phase Turbulent Flow; Pollutant; Subgrid Scale Model; Lattice Boltzmann Method;
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Times Cited By KSCI : 3  (Citation Analysis)
Times Cited By SCOPUS : 0
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