A validation study of multizone airflow and contaminant migration simulation programs as applied to tall buildings.

Describes a study carried out to validate multizone airflow and contaminant migration simulation programs as they apply to the modelling of tall buildings. Tracer gas experiments were performed in a building on a university campus. A comparison was performed between the measured tracer gas concentrations from these tests and those predicted by a simulation program. The airflow and contaminant migration program was found to be useful for examining general migration patterns of airflow and contaminants within tall buildings, however, an absence of accurate input parameters for the model limited the precision of the results obtained. The measured and calculated tracer gas concentrations also varied significantly due to poor mixing of the tracer gases in the spaces.