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Article

Impact Analysis of Environmental Conditions on Odour Dispersion Emitted from Pig House with Complex Terrain Using CFD

1
Department of Rural Systems Engineering, Research Institute for Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Gwanakno 1, Gwanakgu, Seoul 08826, Korea
2
Department of Agricultural and Biosystems Engineering, College of Engineering, Mariano Marcos State University, Batac City 2906, Ilocos Norte, Philippines
3
Animal Environment Division, National Institute of Animal Science, Rural Development Administration, 1500, Kongjwipatjwi-ro, Iseo-myeon, Wanju-gun, Jeollabuk-do 55365, Korea
4
Research Institute of Green Eco Engineering, Institute of Green Bio Science and Technology, Seoul National University, 1447, Pyeongchang-daero, Daehwa-myeon, Pyeongchang-gun, Gangwon-do 25354, Korea
*
Author to whom correspondence should be addressed.
These authors have contributed equally to this work.
Agronomy 2020, 10(11), 1828; https://doi.org/10.3390/agronomy10111828
Received: 31 October 2020 / Accepted: 14 November 2020 / Published: 20 November 2020
With the rise in livestock production, the odour concentration emitted from livestock facilities has significantly increased. For this reason, odour complaints have become a major issue. The dispersion of the odour into the atmosphere is affected by various factors (wind speed, wind direction, atmospheric stability, terrain condition, ventilation type, and so on). Thus, a thorough analysis on the factor influencing odour dispersion is necessary to establish regulations and policies for odour management. Therefore, this research aimed to evaluate odour dispersion generated from a pig house with complex terrain using computational fluid dynamics (CFD) and to statistically determine the key factor for odour dispersion. By comparing CFD-computed results with field-measured data, an appropriate grid size, time step, and turbulence model of the CFD model were determined. Considering various factors, case studies were performed using the validated CFD model. The CFD-computed results showed that odour dispersion distance at the level of 1 OU m−3 ranged from 129.7 to 1488.1 m. The prediction of odour dispersion distance varies with the change of factor being analysed. Finally, the statistical analysis showed that the most influential factor that affected odour dispersion distance was the wind speed with a t-value: −9.057. View Full-Text
Keywords: atmospheric stability; complex odour; complex terrain; computational fluid dynamics; odour dispersion atmospheric stability; complex odour; complex terrain; computational fluid dynamics; odour dispersion
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MDPI and ACS Style

Yeo, U.-H.; Decano-Valentin, C.; Ha, T.; Lee, I.-B.; Kim, R.-W.; Lee, S.-Y.; Kim, J.-G. Impact Analysis of Environmental Conditions on Odour Dispersion Emitted from Pig House with Complex Terrain Using CFD. Agronomy 2020, 10, 1828. https://doi.org/10.3390/agronomy10111828

AMA Style

Yeo U-H, Decano-Valentin C, Ha T, Lee I-B, Kim R-W, Lee S-Y, Kim J-G. Impact Analysis of Environmental Conditions on Odour Dispersion Emitted from Pig House with Complex Terrain Using CFD. Agronomy. 2020; 10(11):1828. https://doi.org/10.3390/agronomy10111828

Chicago/Turabian Style

Yeo, Uk-Hyeon, Cristina Decano-Valentin, Taehwan Ha, In-Bok Lee, Rack-Woo Kim, Sang-Yeon Lee, and Jun-Gyu Kim. 2020. "Impact Analysis of Environmental Conditions on Odour Dispersion Emitted from Pig House with Complex Terrain Using CFD" Agronomy 10, no. 11: 1828. https://doi.org/10.3390/agronomy10111828

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