The air movement in multi-zone areas is normally promoted by temperature difference between warm zone and cold zone under natural convection situations, and/or by pressure difference due to wind or mechanical ventilation.
It is known that the airflow pattern plays a fundamental role in the deposition, migration and distribution of aerosol particles in the multi-zone area.
The study of such situations has been carried out both by experimental measurements and by numerical studies.
Generally speaking from the experimental and numerical studies, experimental study can supply direct knowledge of airflow and particle deposition in the ventilated space based on the measurement data on sample points. However, it is found that experimental study cannot provide enough information about the air movement and particle deposition and distribution in the whole area due to the limited number of measurement points.
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