摘要
结合冷却塔的工作原理,简要分析比较了ORFAD、KUMULUS、ISCST3、ANL/UI、CFD等预测冷却塔水汽抬升与液滴沉降规律的数值模型的优缺点。结果表明:使用三维流体雷诺运动方程的CFD模型是目前预测冷却塔水汽抬升与液滴沉降规律的较好模型。其它模型均没有考虑水汽轨迹流线偏差与速度的变化对水汽上升的影响,同时不能用于预测当冷却塔下风向有大型建筑物且粒径较大的粒子的抬升与沉降规律。
Based on the working principle of cooling tower, analysis and comparison are made of beth advantages and disadvantages of the numerical simulation models, such as ORFAD, KUMULUS, ISCST3, ANL/UI, CFD etc., which predict the rise and droplet deposition pattern of cooling tower water vapor. The results showed that, CFD model is currently a better model that is used of three-dimensional Renault fluid flow equations predicting the rise and droplet deposition pattern of cooling tower water vapor. The impact of the line trajectory deviation and the speed change inn plume rising is not considered in any other models, and they can not be used for prediction of particle rise and droplet deposition when a larger particle or large buildings in the direction of cooling tower.
出处
《辐射防护》
CAS
CSCD
北大核心
2010年第2期102-107,共6页
Radiation Protection
基金
国家"十一五"核能开发资金资助项目
关键词
冷却塔
水汽抬升
液滴沉降
数值模拟
Cooling Tower
Water Vapor Rise
Droplet Deposition
Numerical Simulation
