건물 집합 지역에서 대기안정도 변화에 따른 악취 확산에 대한 전산유체역학 연구
Odor dispersion from the ground level emission in the idealized building block array was investigated using Computational Fluid Dynamics (CFD). The SST k-ω turbulence closure model was used to evaluate the flow and odor dispersion in the idealized building block array. The numerical results of the f...
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Published in | 한국대기환경학회지(국문) Vol. 37; no. 1; pp. 1 - 16 |
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Main Author | |
Format | Journal Article |
Language | Korean |
Published |
한국대기환경학회
01.02.2021
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Subjects | |
Online Access | Get full text |
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Summary: | Odor dispersion from the ground level emission in the idealized building block array was investigated using Computational Fluid Dynamics (CFD). The SST k-ω turbulence closure model was used to evaluate the flow and odor dispersion in the idealized building block array. The numerical results of the flow and odor dispersion were compared with the experimental data from the wind tunnel and water tank. Three validation metrics (the fractional bias (FB), the normalized mean square error (NMSE), and the fraction of predictions within a factor of two of observations (FAC2)) were used to obtain the optimal turbulent Schmidt number. The result showed the optimal turbulent Schmidt number, resulting in 0.7. Six atmospheric stability conditions, namely A, B, C, D, E, F, were used to evaluate the stability effect of odor emission dispersion.
The impact distance of odor plume were larger under neutral conditions (D) than under unstable (A, B, C) and stable (E, F) conditions. KCI Citation Count: 0 |
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Bibliography: | https://doi.org/10.5572/KOSAE.2021.37.1.001 |
ISSN: | 1598-7132 2383-5346 |
DOI: | 10.5572/KOSAE.2021.37.1.001 |