3D Simulation of Leakage and Diffusion of Gas in Complex and Sealed Space

The leakage and diffusion accident of inflammable and explosive toxic gas has become a serious problem in the field of environment and security. Based on the optimized three-dimensional finite element model (FEM3) and the actual condition in complex and sealed space, a three-dimensional simulation system is developed to simulate the dynamic process of leakage and diffusion of gas in complex and sealed space. Changes of gas concentration in dynamic diffusion process are accurately simulated in the meanwhile. Experiment results show that this system can accurately simulate the changing condition of gas concentration in leakage and diffusion process. It provides a new method for simulation of gas leakage and diffusion.