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Similarity applied to modeling and simulation in computational fluid dynamics (CFD) of animal welfare during transport of broilers

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org

Citation:  2015 ASABE Annual International Meeting  152189877.(doi:10.13031/aim.20152189877)
Authors:   Keller Sullivan Oliveira Rocha, Ilda de Fátima Ferreira Tinôco, Richard Stephen Gates, Weichao Zheng, Elohanna Levi Azevedo, José Helvecio Martins, Damiana Diniz Rosa
Keywords:   Thermal and physiological stresses, physical models, modeling animal comfort

Abstract. Wind and water tunnels can be used in the laboratory to reproduce the fluid flows naturally found in the field, thus enabling evaluation of reduced-scale models of the object of study, geometrically scaled to the environment simulation. Experimental analyses in wind and water tunnels must be able to define precisely, quickly and cost dynamics in the object of study. This paper describes the fluid dynamics analysis of a combined wind and water tunnel used to analyze a small-scale physical model of broiler housing, and a subsequent computational model developed from similarity principles and simulated with a computational model in CFD. The application of similarity and the use of physical models of small-scale broiler housing are promising for evaluating the comfort of broilers, since the correct fluid flow field is used in the prototype exhibiting the same behavior in the simulations in real scale. This can contribute to recommendations in ventilation rates and gas dispersion among animals. However, it is necessary to perform simulations with multiple chambers to verify this effect.

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