Measurement and modelling of aerosol particle flow in an environmental chamber.

This paper is concerned with measurement of air and aerosol particle exchange efficiency in a single zone chamber. Aerosol particles and tracer gases were injected into the chamber and their concentrations were monitored as a funtion of time. The chamber was provided with supply and exhaust terminals which allowed various airflow and particle patterns (e.g. piston flow, displacement flow) to be investigated. The effect of airflow pattern on deposition rate of aerosol particles on the surfaces of the chamber was determined. This paper also describes the application of computational fluid dynamics (CFD) modelling for the prediction of particleflow in the chamber. The CFD model, FLUENT, was used forthis investigation and results were compared with particle and tracer-gas measurements.