Abstract
Numerical simulation of particle transport in slot-inlet ventilated airspaces was conducted to determine the influence of exhaust placement, inlet placement, obstruction, and number of inlets on particle transport. Airflow was simulated using the two-equation k-e turbulence model and particle transport was calculated using the equation of motion of the particle. Results showed that the vertical position of the exhaust outlet on the sidewall did not significantly influence particle transport. Vertical position of the inlet significantly influenced particle transport; however, results did not show any considerable difference in particle concentration with inlet placement. Obstruction also significantly influenced particle transport; mean particle concentration at animal height was lower for all flow cases with no obstruction than for all flow cases with an obstruction. Results also showed that using a slot inlet on both sidewalls was more effective in removing or exhausting particles than one with a slot inlet on one sidewall.
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