Modelling of ammonia emissions from naturally ventilated livestock buildings. Part 3: CFD modelling

Bjerg, Bjarne and Cascone, Giovanni and Lee, In-Bok and Bartzanas, Thomas and Norton, Tomas and Hong, Se-Woon and Seo, Il-Hwan and Banhazi, Thomas and Liberati, Paolo and Marucci, Alvaro and Zhang, Guoqiang (2013) Modelling of ammonia emissions from naturally ventilated livestock buildings. Part 3: CFD modelling. Biosystems Engineering, 116 (3). pp. 259-275. ISSN 1537-5110


The purpose of this review paper is to identify current capabilities of Computational Fluid Dynamics (CFD) modelling techniques and areas where further scientific research is required, in order to identify how best CFD can be utilised in the future as a comprehensive modelling tool that enables naturally ventilated (NV) livestock buildings to be designed to reduce ammonia emissions.The review indicates that CFD methods possess many of the elements needed to develop reliable models for prediction of ammonia emission (AE) from NV livestock buildings. Nevertheless, development and validation of methods to specify boundary conditions regarding the ammonia-emitting surface is still a challenging task. In addition further development and validation is needed of (1) methods to model the influence of the animals and the influence of varying weather conditions, (2) strategies on how to select the most appropriate turbulence model relative to the modelling application at hand and computational power available, (3) more advanced solar irradiation models to gain more understanding of its effect on AE, (4) standardised sensitivity analysis of the uncertainties involved in the CFD model, (5) standard approaches to the incorporation of contaminant transfer across boundary layers of emitting surfaces within large scale simulations, and (6) more effective meshing techniques.

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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: © 2013 IAgrE. Published version deposited in accordance with the copyright policy of the publisher.
Faculty / Department / School: Current - Faculty of Health, Engineering and Sciences - School of Agricultural, Computational and Environmental Sciences
Date Deposited: 15 Oct 2013 01:12
Last Modified: 15 Jul 2014 04:32
Uncontrolled Keywords: animal enclosures; air quality; emissions; farm building design; ammonia
Fields of Research : 07 Agricultural and Veterinary Sciences > 0702 Animal Production > 070203 Animal Management
09 Engineering > 0915 Interdisciplinary Engineering > 091501 Computational Fluid Dynamics
09 Engineering > 0907 Environmental Engineering > 090701 Environmental Engineering Design
Socio-Economic Objective: D Environment > 96 Environment > 9601 Air Quality > 960199 Air Quality not elsewhere classified
Identification Number or DOI: 10.1016/j.biosystemseng.2013.06.012

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