摘要
针对放射性污染物的扩散过程表达问题,设计了适用于该方法的状态建模与面向对象建模混合的数据模型,该模型支持真三维的网格化表达与元胞机推演,可以将传统放射性污染物的计算与表达结合在一起,数据不需要多次转换与重采样,降低了精度和效率的损失。通过两个实验,分别针对单源和多源放射性污染物的大气扩散过程进行了模拟,扩散模拟的结果符合放射性污染物扩散的客观规律,整个扩散表达过程中任意一个时刻、截面或者空间的污染物浓度都可以动态地计算和表达,过程具有非常好的直观性和可分析性。
We designed a data model which is suitable for the combination of state modeling and object-oriented modeling for the issue in expressing the release process of radioactive pollutants.This data model supporting the real three-dimensional grid expression and cellular automata deduction combines the traditional calculation and expression of radioactive pollutants,avoids multiple data conversion and resampling,and thus reduces the loss of accuracy and efficiency.Through two experiments,we simulated the release processes of single source and multi-source radioactive pollutants.The results of simulation follow the law of radioactive pollutant release with the dynamic calculation and expression of the pollutant concentration at arbitrary time,cross section or space in the whole release expression process.The process is very intuitive and analyzable.
作者
施加松
余接情
常芸芬
童晓冲
SHI Jiasong;YU Jieqing;CHANG Yunfen;TONG Xiaochong(Research Institute of Chemical Defence,Beijing 102205,China;School of Environment Science and Spatial Informatics,China University of Mining & Technology,Xuzhou 221116,China;Information Engineering University,Zhengzhou 450001,China)
出处
《地理信息世界》
2019年第2期52-59,共8页
Geomatics World
