air flow

The macroscopic behaviour of heat and airflow transport within an atrium is analyzed based on the result of a microscopic numerical stimulation. The result of the numerical simulation agreed fairly well with that of the model experiment. In orde

In a displacement ventilation system a thermal plume which is formed over a heat source evokes circulation flows, thermal stratification of the room air and air transport from the supply to the outlet opening. The results of experiments on plu

A high resolution particle-imaging velocimetry has been developed and applied to study full-scale room air flows. The system is designed to study local field quantities in occupied zones (microclimate), ventilation effectiveness, and airborne pollutant transport in the indoor environment. The system can be applied to evaluate indoor environment in typical commercial and residential settings. The technique and instrumentation have been applied successfully to study localized air flow patterns and particle concentration distribution in the indoor environment.