Evaluation of Ventilation Performance for Indoor Space
Yamamoto, T., Ensor, D., & Sparks, L. E. (1994). Evaluation of Ventilation Performance for Indoor Space. Building and Environment, 29(3), 291-296.
Ventilation performance depends on room geometry, ventilation method, and operating conditions as well as location and strength of the source and types of contaminants. A personal computer based application of computational fluid dynamics was developed that is capable of determining the turbulent flow field and time-dependent/steady-state contaminant concentration distributions within isothermal indoor space. The computational speed is extremely fast. The flow field calculated from this 2-D k-epsilon turbulence model showed good agreement with results from the commercially available FLUENT code. Ventilation performance was evaluated using the 'ventilation performance index. ' Effects of room configurations, operating conditions, and effective diffusion coefficient (or Peclet number) on ventilation performance were investigated