东南大学学报（自然科学版）2025，Vol.55Issue(3)：895-902,8.DOI:10.3969/j.issn.1001-0505.2025.03.033
扰流管道内过饱和度分布的模拟研究
Simulation on distribution characteristics of supersaturation in turbulent pipeline
摘要
Abstract
In order to explore the distribution characteristics of supersaturation in turbulent pipeline,Fluent computational fluid dynamics software was used to calculate the heat and mass transfer model in the turbulent pipeline.Firstly,flow characteristics in the turbulent pipeline were analyzed.Secondly,the distribution char-acteristics of supersaturation at different radial positions in the pipeline were analyzed,and the influence of fac-tors on supersaturation such as inlet air temperature,inlet air velocity and inlet air relative humidity were stud-ied.Finally,the supersaturation distribution of turbulent pipeline and circular pipeline was compared.The re-sults demonstrates that the air will form reflux vortexes behind the spoilers and the turbulent thermal diffusivity of the air in the center of the pipeline is obviously increased with the influence of the vortexes.The features of supersaturation distribution near the spoilers are distinct at different radial positions.Supersaturation increases at the center of the pipeline but decreases at the pipeline wall with the effect of the spoilers.The supersatura-tion increases obviously with the increase of the temperature difference between air and pipeline wall.When the temperature difference between inlet air and pipeline wall is constant,lower inlet air temperature can obtain higher average supersaturation in the pipeline.The average supersaturation in the pipeline increases with the decrease of inlet air velocity.The spoilers can effectively increase the supersaturation and improve the unifor-mity of supersaturation in the center area of the pipeline.关键词
细颗粒物/水汽相变/过饱和度/Fluent流体仿真软件Key words
fine particles/water vapor phase transition/supersaturation/Fluent computational fluid dynam-ics software分类
能源与动力引用本文复制引用
张军,李安进,代安稳..扰流管道内过饱和度分布的模拟研究[J].东南大学学报（自然科学版）,2025,55(3):895-902,8.基金项目
国家自然科学基金资助项目(51876038). （51876038）
