Numerical simulation of pollutant dispersion in a test ventilated room

Abstract

The paper presents the numerical study of 3D flow and neutrally buoyant pollutant transport in a model atrium under conditions of test experiment by Thatcher et al. (2004) with a controlled uranine dye spill. For the Reynolds number of 2160 the Reynolds-Averaged Navier-Stokes approach was applied. Analysis of CFD predictability for a steady-state fully-developed regime and a transient process was done in comparison with the experimental data on contaminant concentration fields. For various positions of the contaminant source the ventilation effectiveness was computed and discussed.

Reducing Indoor Air Pollution through Personalized Ventilation for Occupants in Office Environments and Confined Spaces

“…This approach involves delivering clean air from diffusers situated at a distance from occupants. IAQ it can be profoundly influenced by passive contaminants, such as gases and airborne particulate matter including both indoor-generated particles (PM2.5, PM10) and outdoor-generated traffic-related particles [1][2][3]. These pollutants present a substantial risk to human health as they can affect occupants and lead to respiratory problems like asthma [4] or respiratory allergies [5], or can lead to cardiovascular diseases [6], or eyes, nose and throat irritations [7], thereby contributing to serios health problems for the occupants.…”