复杂地形扩散模式(CTDM)的应用与研究

计算物理 ›› 2005, Vol. 22 ›› Issue (3): 227-232.

复杂地形扩散模式(CTDM)的应用与研究

范丽雅^1,2, 张茂栓², 桑建国¹, 刘树华¹

1. 北京大学物理学院大气科学系, 北京 100871;
2. 中国辐射防护研究院, 山西太原 030006

收稿日期:2004-02-24 修回日期:2004-08-12 出版日期:2005-05-25 发布日期:2005-05-25
作者简介:范丽雅(1977-),女,山西,博士生,从事大气边界层物理与大气环境方面的研究,北京大学物理学院大气科学系100871

A Study on the Complex Terrain Dispersion Model (CTDM)

FAN Li-ya^1,2, ZHANG Mao-shuan², SANG Jian-guo¹, LIU Shu-hua¹

1. Department of Atmospheric Science, School of Physics, Peking University, Beijing 100871, China;
2. China Institute for Radiation Protection, Taiyuan 030006, China

Received:2004-02-24 Revised:2004-08-12 Online:2005-05-25 Published:2005-05-25

摘要/Abstract

摘要： 应用美国环保局的复杂地形扩散模式(CTDM)预测了我国秦山核电站(QNPP)1,2,3期的空气污染物地面轴线浓度.计算结果与风洞模拟实验测量结果和少量现场监测数据进行了对比.对CTDM理论做了进一步研究,对模式上升分量的计算方法做了一些改进尝试,提出两种修正方案.模式有效性检验表明,修正后模式计算结果更接近风洞实验结果和现场监测数据,计算值与实测值的比值落在1/3.5~3.5范围内的数据百分率分别是:CTDM为54.4%,修正方案1为72.9%,修正方案2为58.6%.另外,文中还做了模式灵敏度分析.

关键词: 空气污染, CTDM, 风洞模拟, 秦山核电站

Abstract: The Complex Terrain Dispersion Model (CTDM) developed by the American Environmental Protection Agency (EPA) is applied to Qinshan Nuclear Power Plant (QNPP) in China.The ground plume centerline concentrations of atmospheric pollutant in PhaseⅠ,Ⅱ and Ⅲ are calculated.The results are compared with that of wind tunnel experiments and a few field data.Two revising methods for LIFT are put forward.Model reliability test shows that the revising methods are more accurate.The ratios of calculated result to the measurement in the domain of 1/3.5~3.5 are:54.4% in CTDM,72.9% in revision A, 58.6% in revision B.In addition,the model sensitivity is analyzed.

Key words: air pollution, CTDM, wind tunnel simulation, Qinshan nuclear power plant

中图分类号:

范丽雅, 张茂栓, 桑建国, 刘树华. 复杂地形扩散模式(CTDM)的应用与研究[J]. 计算物理, 2005, 22(3): 227-232.

FAN Li-ya, ZHANG Mao-shuan, SANG Jian-guo, LIU Shu-hua. A Study on the Complex Terrain Dispersion Model (CTDM)[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 2005, 22(3): 227-232.