Investigation of inlet boundary conditions for numerical prediction of air flow in livestock buildings

摘要

In modern livestock buildings the design of ventilation systems is important in order to obtain good air distribution. The use of Computational Fluid Dynamics for prediction of the air distribution makes it possible to include the effect of room geometry and heat sources in the design of ventilation systems. This paper presents numerical prediction of air flow compared with laboratory measurements. A commercial air inlet device for livestock buildings was used in the experimental set-up. In the numerical predictions special attention was paid to the specification of boundary conditions for this type of inlet. (au) (15 refs.)