July 2000 - June 2001
Principal investigator: Qingyan Chen
Research Assistant: Mingde Su
Sponsor: MIT Lincoln Laboratory
Contaminant distribution in a room
In order to predict indoor air quality, it is essential to simulate the particletrajectories of contaminants in and around buildings. The information can be used to determine the best locations for placing sensors so that the building systems can provide best air quality. The study uses the Lagrangian model to trace the particle motion in a large eddy simulation program. Drag, buoyancy and Brownian forces are being considered in the motion equations. The modeling of momentum and energy exchange between air and particles is also established according to the theoretical analysis and experimental data.