Study of Airflow Distribution in a Simple Model Room with a Model of a Human Body and Furniture using Particle Image Velocimetry (PIV)

摘要

In planning indoor environments, it is very important to establish the ventilation and temperature distribution in the occupant zone. Particle image velocimetry (PIV) is a noncontact flow visualization method that is used to measure the airflow velocity at multiple points simultaneously. However, to perform PIV measurements, it is necessary to seed the entire measurement area with smoke. Thus, it is extremely difficult to perform indoor airflow measurements using current techniques; moreover, there are few studies on the quantitative evaluation of airflow distribution in the interior of a full-scale model room by PIV. This study uses PIV and a simple model room with a model of a human body and furniture. Airflow visualization in the room is performed using three lasers. The location of air supply ports and exhaust ports are the experiment variables. The distribution of wind speed and turbulence intensity in the room is reported.