Design of ventilation system in a big enclosed car park using computational fluid dynamics

摘要

Design with the aid of Computational Fluid Dynamics to improve the indoor air quality by studying different ventilation design schemes in a big enclosed car park in Hong Kong was reported in this paper. The air flow patterns at the occupied zone due to different operating conditions of the ventilation system were simulated. This included the ventilation rates, locations of air intake and exhaust. The package PHOENICS with the FLAIR manual was used. The effects of heat and pollutant sources on the resultant airflow pattern at the occupied zone were also studied.