Abstract
Diffusion of dioxin class into the environment has become one of serious social problems. More than 80% of such dioxin class is estimated to be discharged from trash incinerators and factories. There are several ways to solve the problems, In this study, we focus on the quantitative understanding of dioxin class diffusing from trash incinerators and factories into the atmosphere. Here incompressible fluid flow in the atmosphere is first calculated using the 3D finite element method. Then the diffusing process of contaminant particles with different weight is traced within the time dependent finite element solutions, and visualized.
