大亚湾核电厂址大气示踪试验的数值模拟  

NUMERICAL SIMULATION OF TRACE TESTS IN ATMOSPHERE IN DAYA BAY NUCLEAR POWER SITE

作　　者：陈晓秋[1] 

机构地区：[1]国家环境保护总局核安全中心,北京100088

出　　处：《辐射防护》2005年第5期274-282,290,共10页Radiation Protection

摘　　要：用大亚湾核电厂址的大气示踪试验数据对核事故应急响应预报模式系统进行了验证。大亚湾核电厂址的模拟实验显示,浓度预测模式给出的粒子散布和积分浓度分布均能反映出污染物输送路径的变化,以及地形对污染物迁移和扩散的影响。5次现场示踪试验模拟结果的统计分析表明,预测值和实测值的比值Rc10的占59.1%,其中比值Rc5的达到41%。The validation of the forecast model for early emergency response to nuclear accidents is evaluated by trace tests in atmosphere in Daya Bay nuclear power site. The simulation experiment of the Daya Bay nuclear power site shows that the particle spreading image and the time-integrated concentration distribution given by plume concentration prediction model can perform the variation of pathway of the pollutant transport, as well as the effects of topography on transport and diffusion of pollutants. The simulation of five trace tests in field shows that 59.1% of ratios between predicted results and observed results are within the range of 10, and 41% of ratios are within the range of 5 approximately.

关 键 词：应急响应 预报 示踪 模式验证 现场示踪试验 核电厂址 大亚湾 数值模拟 大气 浓度分布 核事故应急 污染物输送 污染物迁移 

分 类 号：TL751[核科学技术—辐射防护及环境保护]