摘要
采用CFD方法建立核电厂烟羽大气弥散模型,计算中性大气层结条件下烟羽分布。该模型采用垂直风速廓线表征的速度和温度梯度方式分类大气稳定度,将烟羽弥散模拟计算结果与经典解析理论计算结果进行对比,分析烟羽弥散CFD计算结果的抬升规律、烟羽空间浓度分布和扩散参数,对模型进行有效性分析。所得结果与经典解析结论基本一致。研究表明,该烟羽大气弥散模型可用于核电厂烟羽大气弥散过程的研究。
In order to simulate the process of plume under neutral atmospheric stability in nuclear power plant,the method of CFD numerical simulation was applied.The line wall function of wind and temperature gradient was used to describe the atmospheric stability.Compared the analysis result of CFD numerical simulation with classic analysis theory,the law of plume elevating,concentration distribution in the space and diffusion parameters,which could validate the effectiveness of numerical simulation model were analyzed.The results are in accordance with the classic analysis theory result,and CFD numerical simulation can be used to solve the smoke plume diffusion problem in nuclear power plant.
出处
《原子能科学技术》
EI
CAS
CSCD
北大核心
2012年第7期837-841,共5页
Atomic Energy Science and Technology
基金
教育部科技创新工程重大项目培育资金资助项目(708036)
关键词
核电厂烟羽大气弥散
扩散参数
CFD数值模拟
plume diffusion in nuclear power plant； diffusion parameters； CFD numerical simulation
