摘要
通过引入变分同化算法,结合高斯烟团模型,对化学爆炸后的质量浓度扩散分布进行了数值模拟研究。在对源项误差和风场误差的研究中,通过变分同化效果图和均方根误差走势图分析,将均方根误差分别从380μg·m^(-3)减小到50μg·m^(-3),从200μg·m^(-3)减小到90μg·m^(-3),并减小了波动程度,证明了变分同化的有效性和可行性。
By introducing variational assimilation algorithm and combining gaussian smoke cluster model, the concentration diffusion distribution after chemical explosion was numerically simulated.In the study of source term error and wind field error, the root-mean-square error was reduced from 380 μg·m^(-3) to 50 μg·m^(-3), and from 200 μg·m^(-3) to 90 μg·m^(-3) by means of variational assimilation effect diagram and root-mean-square error trend diagram, respectively, and the fluctuation degree was reduced, which proved the effectiveness and feasibility of variational assimilation.
作者
蒋金利
诸雪征
顾进
韩朝帅
JIANG Jin-li;ZHU Xue-zheng;GU Jin;HAN Chao-shuai(Institute of Chemical Defense,Beijing 102205,China;Research Institute of Chemical Defense,Beijing 102205,China)
出处
《当代化工》
CAS
2021年第8期1967-1973,共7页
Contemporary Chemical Industry
关键词
化学爆炸
变分同化
数值模拟
Chemical explosion
Variational assimilation
Numerical simulation
作者简介
蒋金利(1996-),男,江苏省徐州市人,在读硕士研究生,研究方向:数据同化、化学危害。E-mail:JiangJL166@163.com;通信作者:诸雪征(1962-),男,教授,工学硕士,研究方向:核生化装备、核生化信息融合。E-mail:493371839@qq.com。
