3D Simulation Of Gas Leakage And Diffusion In Complex And Sealed Space

As one of current popular topics in the field of simulation, simulation of gas leakage and diffusion is getting more and more attention. Based on current researchment at home and abroad, common simulation models of gas leakage and diffusion are anaylzed and compared in this paper. In view of these advantages and disadvantages, three-dimensional finite element model is optimized according to actual condition. Based on this model, a three-dimensional simulation system is developed to simulate the dynamic process of gas leakage and diffusion.Three-dimensional simulation schema of gas leakage and diffusion introduces the optimal goal of three-dimensional finite element model and the corresponding optimal measures according to actual condition of complex and sealed space in detail, theoretical analysis the performance advantages of the optimal simulation model. The simulation and numeration structure of its functional modules are described, and the specific algorithm based on finite element method is presented. By scripting and calling its service in a fully developed simulation environment, three-dimensional simulation schema of gas leakage and diffusion achieves three-dimensional visualization of the simulation results and is realized with high simulation accuracy. Cost of time is reduced and simulation efficiency is improved.This schema is tested in the platform of overall security evaluation system. Take a given object space as simulation case and do performance test in aspects of cost time and results by comparing with experimental data. 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 diffuion.