基于高斯分段烟羽模型的海上核素弥散模型
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摘要
根据海上核事故核素弥散特点,选择高斯模型进行模拟,基于高斯分段烟羽模型对事故发生后较短时间内的核素弥散情况进行了模拟分析,通过Matlab编程模拟烟羽扩散形式,得出了短时间内事故舰船周围的核素分布情况,从而对受时间和风场影响的核素弥散过程实现了实时烟羽动态模拟。整个核素弥散过程可预报一定时间内核素弥散路径和影响范围,为核救援方案提供参考。
According to the characteristic of nuclide dispersion on the sea,we chose Gaussian model to simulate,and then simulated and analyzed the nuclide dispersion which happened after the nuclear accident in a short time by segmented Gaussian Plume model,and programmed and simulated smoke plume diffusion forms with the software of Matlab. At last,we got the nuclide concentration distribution around the accident ship,thus accomplished the dynamic simulation of nuclide dispersion which affected by time and wind field after the nuclear accident in real time. The whole progress of nuclide dispersion could forecast the nuclide diffusion path and influence scope in a certain time,providing references for nuclear rescue packages.
According to the characteristic of nuclide dispersion on the sea,we chose Gaussian model to simulate,and then simulated and analyzed the nuclide dispersion which happened after the nuclear accident in a short time by segmented Gaussian Plume model,and programmed and simulated smoke plume diffusion forms with the software of Matlab. At last,we got the nuclide concentration distribution around the accident ship,thus accomplished the dynamic simulation of nuclide dispersion which affected by time and wind field after the nuclear accident in real time. The whole progress of nuclide dispersion could forecast the nuclide diffusion path and influence scope in a certain time,providing references for nuclear rescue packages.
引文
[1]张兵.放射性物质大气弥散仿真研究[D].哈尔滨:哈尔滨工程大学,2004.
[2]余琦,刘原中.分段烟羽模型和烟团模型在核事故应急中的应用比较[J].核科学与工程,2001,21(3):288-292.
[3]宁莎莎.福岛核事故典型气载放射性核素的弥散及辐射剂量研究[D].上海:上海交通大学,2013.
[4]李华,邓继勇,王旭辉,等.用高斯模型计算大气中放射性核素云团的扩散[J].辐射防护,2004,24(2):92-99.
[5]陈晓秋.核事故早期应急响应的风场和烟羽浓度预测模式研究[D].北京:中国原子能科学研究院,2003.
[6]姚仁太,郝宏伟,胡二邦.RODOS系统中两种大气弥散模型链的比较[J].辐射防护,2003,23(3):146-155.
[7]徐志燕.随机游走粒子-烟团大气模式在核事故中的应用[D].哈尔滨:哈尔滨工程大学,2011.
[8]汤彬,葛良全,方方.核辐射测量原理[M].哈尔滨:哈尔滨工程大学出版社,2011.
[9]吴建平,蔡琦,袁灿,等.舰船核动力装置事故处理规程的改进[J].四川兵工学报,2014,35(11):137-139.
[10]中国科学院工程力学研究所.γ射线屏蔽参数手册[M].北京:原子能出版社,1976.
[11]RODOS(WG2)-TN(97)-01.Description of the Atmospheric Dispersion Model ATSTEP[Z].1997.
[2]余琦,刘原中.分段烟羽模型和烟团模型在核事故应急中的应用比较[J].核科学与工程,2001,21(3):288-292.
[3]宁莎莎.福岛核事故典型气载放射性核素的弥散及辐射剂量研究[D].上海:上海交通大学,2013.
[4]李华,邓继勇,王旭辉,等.用高斯模型计算大气中放射性核素云团的扩散[J].辐射防护,2004,24(2):92-99.
[5]陈晓秋.核事故早期应急响应的风场和烟羽浓度预测模式研究[D].北京:中国原子能科学研究院,2003.
[6]姚仁太,郝宏伟,胡二邦.RODOS系统中两种大气弥散模型链的比较[J].辐射防护,2003,23(3):146-155.
[7]徐志燕.随机游走粒子-烟团大气模式在核事故中的应用[D].哈尔滨:哈尔滨工程大学,2011.
[8]汤彬,葛良全,方方.核辐射测量原理[M].哈尔滨:哈尔滨工程大学出版社,2011.
[9]吴建平,蔡琦,袁灿,等.舰船核动力装置事故处理规程的改进[J].四川兵工学报,2014,35(11):137-139.
[10]中国科学院工程力学研究所.γ射线屏蔽参数手册[M].北京:原子能出版社,1976.
[11]RODOS(WG2)-TN(97)-01.Description of the Atmospheric Dispersion Model ATSTEP[Z].1997.