期刊论文

Simulation of radioactive aerosol diffusion, migration and control measures

中文

中国科技论文

2095-2783

2017

12

5

581-588

10.3969/j.issn.2095-2783.2017.05.019

高等学校博士学科点专项科研基金资助项目（20134324120003）； 湖南省教育厅重点项目基金资助项目（14A120）；

本校为第一机构

针对小、中小、中、中大、大5种不同粒径正态分布下的放射性气溶胶在单、双隔间有限空间内的迁移过程进行了建模与计算.分析了隔间通道的不同长度、截面积大小对气溶胶扩散迁移及沉降的影响;在模拟计算风速、压差、空气湿度等气溶胶迁移影响因素的基础上,对实际过程中进行气溶胶迁移与沉降控制时使用的通风、负压、喷淋等措施进行了模拟.结果表明:对于防止气溶胶扩散,30 cm厚的墙体性价比较高.本文结论结合实验可对放射性气溶胶在受限空间内的扩散迁移实现有效控制.

Radioactive aerosol exists universally in military and civilian technology application fields. Calculations and modeling were made in the migration process of aerosols which distributed normally at 5 different particles diameters in both single and double compartments within the limited space, including small, small and medium, medium, large and medium, large particles diameters. Analyses were made regarding the influences on the migration and sedimentation of the aerosol according to different lengths and cross-sectional sizes of the compartment channel to find out a conclusion that the thick...