基于立体网格的放射性污染物扩散过程模拟与表达
|
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.
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.
引文
[1]Raza S S,Iqbal M.Atmospheric Dispersion Modeling for an Accidental Release from the Pakistan Research Reactor-1(PARR-1)[J].Annals of Nuclear Energy,2005,32(11):1 157-1 166.
[2]胡二邦,高占荣.600MWe核电站正常运行工况下气态排出物环境弥散模式,参数与程序[J].中国核科技报告,1998(S6):1-17.
[3]Thykier-Nielsen S,Deme S,Mikkelesn T.Description of the Atmospheric Dispersion Module RIMPUFF[R].1999.
[4]余琦,刘原中.拉格朗日烟团模型在核事故早期应急决策中的应用[J].清华大学学报,2000,40(12):6-9.
[5]闫政,杨亚新,张叶,等.核事故早期烟羽的蒙特卡罗模拟[J].东华理工大学学报,2009,32(4):358-361.
[6]张美根,韩志伟,雷孝恩.大亚湾核电站厂址区域大气扩散研究[J].气候与环境研究,2009,5(1):90-95.
[7]Lauritzen B,Baklanov A,Mahura A.K-model Description of Probabilistic Long-range Atmospheric Transport in the Northern Hemisphere[J].Atmospheric Environment,2006,40(23):4 352-4 369.
[8]Lagzi I,Karman D,Turanyi T,et a1.Simulation of the Dispersion of Nuclear Contamination Using an Adaptive Eulerian Grid Model[J].Journal of Environmental Radioactivity,2004,75(1):59-82.
[9]de Sampaio P A B,Junior M A G,Lapa C M F.ACFD Approach to the Atmospheric Dispersion of Radionuclides in the Vicinity of NPPs[J].Nuclear Engineering and Design,2008,238(1):250-273.
[10]Xu B L.A Prototype of Collaborative Virtual Geographic Environments to Facilitate Air Pollution Simulation[D].Hong Kong:CUHK,2009.1-260.
[11]王义祥,孙振海,张攀攀,等.基于GIS空气质量模拟结果的表达方法研究[J].地理与地理信息科学,2011,27(2):46-50.
[12]孙庆珍,董晓马,任忠斌.大气点源扩散模型的GIS可视化研究[J].测绘科学,2011,36(1):24-26.
[13]陈文君,陈锁忠,都娥娥,等.突发性大气污染事故应急监测系统的设计与开发[J].地球信息科学学报,2011,13(2):65-72.
[14]张攀攀,王义祥,邬群勇,等.GIS与大气环境模型的集成及其应用[J].环境科学研究,201023(5):575-580.
[15]Vienneau D,Hoogh K,Briggs D.A GIS-based Method for Modelling Air Pollution Exposures Across Europe[J].Science of the Total Environment,2009,408(2):255-266.
[16]Theophanides M,Anastassopoulou J.Air Pollution Simulation and Geographical Information Systems(GIS)Applied to Athens International Airport[J].Journal of Environmental Science and Health Part A,2009,44(8):758-766.
[17]Elbir T.A GIS Based Decision Support System for Estimation,Visualization and Analysis of Air Pollution for Large Turkish Cities.Atmospheric Environment[J].2004,38(27):4 509-4 517.
[18]李宏伟,张世全,孙庆珍.基于GIS的点源污染扩散模拟可视化研究[J].环境科学与管理,2007,32(10):175-178.
[19]胡亚,朱军,林珲,等.基于大气污染扩散模型的空气污染多维动态可视化表达研究[J].高科技通讯,2013,23(7):728-734.
[20]陈国华,黄庭枫,陈文江,等.基于真三维GIS的危险化学气体泄漏扩散动态模拟仿真系统[J].中国安全生产科学技术,2013,1(1):113-118.
[21]芮小平.空间信息可视化关键技术研究--以2.5维、三维、多维可视化为例[D].北京:中国科学院,2004.
[22]朱庆.三维地理信息系统技术综述[J].地理信息世界,2004,11(3):8-12.
[23]刘少华,程朋根,罗小龙.地矿三维建模及可视化的研究[J].中国矿业,2005,14(10):49-51.
[24]丁治宇.多变量空间数据场的高效可视化[D].杭州:浙江大学,2015.
[25]笪良龙.海洋水声环境效应建模与应用[M].北京:科学出版社,2012.
[26]C Jones.在地质领域内应用的三维空间信息系统的数据结构[J].华东地质学院学报,1993,16(3):32-35.
[27]赖广陵,童晓冲,丁璐,等.三维空间格网的多尺度整数编码与数据索引方法[J].测绘学报,2018,47(7):1 007-1 017.
[28]Orenstein,J.A.,Merrett,T.H..A Class of Data Structures for Associative Searching[C].Proceedings of the 3rd ACMSIGACTGSIGMOD Symposium on Principles of Database Systems.Waterloo,Ontario,Canada:ACM,1984:181-190.
[29]王醒宇,康凌.核事故后果评价方法及其新发展[M].北京:原子能出版社,2003.
[2]胡二邦,高占荣.600MWe核电站正常运行工况下气态排出物环境弥散模式,参数与程序[J].中国核科技报告,1998(S6):1-17.
[3]Thykier-Nielsen S,Deme S,Mikkelesn T.Description of the Atmospheric Dispersion Module RIMPUFF[R].1999.
[4]余琦,刘原中.拉格朗日烟团模型在核事故早期应急决策中的应用[J].清华大学学报,2000,40(12):6-9.
[5]闫政,杨亚新,张叶,等.核事故早期烟羽的蒙特卡罗模拟[J].东华理工大学学报,2009,32(4):358-361.
[6]张美根,韩志伟,雷孝恩.大亚湾核电站厂址区域大气扩散研究[J].气候与环境研究,2009,5(1):90-95.
[7]Lauritzen B,Baklanov A,Mahura A.K-model Description of Probabilistic Long-range Atmospheric Transport in the Northern Hemisphere[J].Atmospheric Environment,2006,40(23):4 352-4 369.
[8]Lagzi I,Karman D,Turanyi T,et a1.Simulation of the Dispersion of Nuclear Contamination Using an Adaptive Eulerian Grid Model[J].Journal of Environmental Radioactivity,2004,75(1):59-82.
[9]de Sampaio P A B,Junior M A G,Lapa C M F.ACFD Approach to the Atmospheric Dispersion of Radionuclides in the Vicinity of NPPs[J].Nuclear Engineering and Design,2008,238(1):250-273.
[10]Xu B L.A Prototype of Collaborative Virtual Geographic Environments to Facilitate Air Pollution Simulation[D].Hong Kong:CUHK,2009.1-260.
[11]王义祥,孙振海,张攀攀,等.基于GIS空气质量模拟结果的表达方法研究[J].地理与地理信息科学,2011,27(2):46-50.
[12]孙庆珍,董晓马,任忠斌.大气点源扩散模型的GIS可视化研究[J].测绘科学,2011,36(1):24-26.
[13]陈文君,陈锁忠,都娥娥,等.突发性大气污染事故应急监测系统的设计与开发[J].地球信息科学学报,2011,13(2):65-72.
[14]张攀攀,王义祥,邬群勇,等.GIS与大气环境模型的集成及其应用[J].环境科学研究,201023(5):575-580.
[15]Vienneau D,Hoogh K,Briggs D.A GIS-based Method for Modelling Air Pollution Exposures Across Europe[J].Science of the Total Environment,2009,408(2):255-266.
[16]Theophanides M,Anastassopoulou J.Air Pollution Simulation and Geographical Information Systems(GIS)Applied to Athens International Airport[J].Journal of Environmental Science and Health Part A,2009,44(8):758-766.
[17]Elbir T.A GIS Based Decision Support System for Estimation,Visualization and Analysis of Air Pollution for Large Turkish Cities.Atmospheric Environment[J].2004,38(27):4 509-4 517.
[18]李宏伟,张世全,孙庆珍.基于GIS的点源污染扩散模拟可视化研究[J].环境科学与管理,2007,32(10):175-178.
[19]胡亚,朱军,林珲,等.基于大气污染扩散模型的空气污染多维动态可视化表达研究[J].高科技通讯,2013,23(7):728-734.
[20]陈国华,黄庭枫,陈文江,等.基于真三维GIS的危险化学气体泄漏扩散动态模拟仿真系统[J].中国安全生产科学技术,2013,1(1):113-118.
[21]芮小平.空间信息可视化关键技术研究--以2.5维、三维、多维可视化为例[D].北京:中国科学院,2004.
[22]朱庆.三维地理信息系统技术综述[J].地理信息世界,2004,11(3):8-12.
[23]刘少华,程朋根,罗小龙.地矿三维建模及可视化的研究[J].中国矿业,2005,14(10):49-51.
[24]丁治宇.多变量空间数据场的高效可视化[D].杭州:浙江大学,2015.
[25]笪良龙.海洋水声环境效应建模与应用[M].北京:科学出版社,2012.
[26]C Jones.在地质领域内应用的三维空间信息系统的数据结构[J].华东地质学院学报,1993,16(3):32-35.
[27]赖广陵,童晓冲,丁璐,等.三维空间格网的多尺度整数编码与数据索引方法[J].测绘学报,2018,47(7):1 007-1 017.
[28]Orenstein,J.A.,Merrett,T.H..A Class of Data Structures for Associative Searching[C].Proceedings of the 3rd ACMSIGACTGSIGMOD Symposium on Principles of Database Systems.Waterloo,Ontario,Canada:ACM,1984:181-190.
[29]王醒宇,康凌.核事故后果评价方法及其新发展[M].北京:原子能出版社,2003.