Thermal Plume of a Standing Manikin in a Ventilated Room

A computational model was developed to study the the airflow field and particles motion near a heated, standing manikin in a ventilated room with a displacement air distribution system. An Eulerian-Lagrangian approach was used to simulate the airflow field and for evaluation of the trajectories of micro-meter particles. The equation of particle motion that was used included inertial, viscous drag, Saffman lift and gravity forces. The result of airflow field simulation was compared with the experimental data of a heated sitting manikin. The possibility that the particles entering from the ventilation register move into the breathing zone was investigated. The simulation results showed that the thermal plume generated by the temperature gradient adjacent to the body can affect the flow field in the room with displacement ventilation (DV) system and also moves the particles from the inlet register to the breathing zone.

کلیدواژه ها:

Breathing zone ، Thermal plume ، Particulate matter ، Displacement ventilation ، CFD