《机床与液压》 Hydromechatronics Engineering

文章详情

稿件标题: Visual simulation algorithm for the diffusion characteristics of airflow leaked from the tank in tunnel
稿件作者: 房建东, 赵智琦
关键字词: Leakage flow, Propagation characteristics, Fluent, Tunnel, Natural gas
文章摘要: Based on Fluent software, a physical and mathematical model of airflow diffusion was established for the proliferation of leakage when the vehicle was traveling in the tunnel and carrying dangerous goods (e.g., natural gas). By using the theories of accidental leakage dynamics and fluid dynamics, the propagation characteristics of the leakage airflow have been investigated. Reynolds time-averaged equations and standard k-equation were adopted in this paper and SIMPLEC algorithm was used to solve the N-S equation. The component transport was used to solve the problem of multi-component fluid diffusion. By using transient model, the airflow diffusion phenomena were simulated at different leakage time in the actual situation. The diffusion of leaked natural gas was simulated at different locations with or without obstacles, and the influence of inlet gas velocity was considered as well. Based on the simulation results, some reference data could be provided to minimize the loss and take ef
收录刊物: 2014.24
稿件基金: China Natural Science Foundation of Inner Mongolia Autonomous Region(2014MS0619), and China Science and Technology Project of Inner Mongolia(20120304)
浏览次数: 938
下载次数: 444
点击下载