摘要
以高斯烟羽模型为基础,利用MATLAB编程软件,模拟液化天然气(LNG)泄漏的动态过程,并通过分析泄漏后气体浓度空间分布图、俯视图及等浓度线来研究LNG泄漏源有效高度、风速对气体扩散的影响。结果表明:随着泄漏源有效高度的增大,危害范围逐渐减小;随着风速的逐渐增大,危害区域也是逐渐减小;在风速一定的情况下,泄漏源有效高度与泄漏源有效高度的最高点浓度呈反比;在泄漏源有效高度不变的情况下,风速与泄漏源有效高度的最高点浓度也成呈反比。
Aiming at the influence of liquefied natural gas( LNG) diffusion,this paper selected Gaussian plume model to simulate liquefied natural gas diffusion process,and studied the effect of leakage source effective height and wind speed on gas diffusion using the MATLAB programming software. The simulation results showed that with the increase of the leakage source effective height,the damage range gradually reduced. As the wind speed increased,the damage area shrank too. If the wind speed fixed,the leakage source effective height was inversely proportional to the highest concentration at that effective height. While if the leakage source effective height fixed,the wind speed was inversely proportional to the highest concentration at that effective height,also.
出处
《环境监测管理与技术》
CSCD
2017年第6期27-30,共4页
The Administration and Technique of Environmental Monitoring
基金
国家自然科学基金资助项目(21406141)
