A menu-driven ventilation model for a personal computer was developed that is capable of determining the distributions of time-averaged, two-dimensional, steady-state flow fields and particulate or gaseous contaminants under isothermal conditions for a given particulate/gaseous diffusion coefficient. The model was written for a personal computer so that engineers can use it as a tool to evaluate a potential ventilation performance in indoor space yet to be designed.
The model's computational speed is extremely fast (a few minutes) with reasonable accuracy. This paper discusses the computational algorithm and user interactiveness for the use of this model. Case studies were performed for a simple indoor environment. Ventilation effectiveness in relation to the locations of the supply air duct and the contaminant source was investigated.
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