化学工程2026，Vol.54Issue(1)：46-51,58,7.DOI:10.3969/j.issn.1005-9954.2026.01.008
氨气气泡在水中的上升和传质特性
Rising and mass transfer characteristics of ammonia gas bubbles in water
摘要
Abstract
The rising and mass transfer process of ammonia gas bubbles in water were numerically simulated using VOF(volume of fluid)method and penetration theory model,and the simulation results were experimentally verified.The effects of the initial diameter of the bubbles on the velocity,wake,mass transfer trails and coefficients during their rising process were investigated.The results show that the mass transfer process has a significant impact on the rising process of ammonia gas bubbles.During the rising process,the larger the initial diameter of the bubble,the smaller the transverse velocity fluctuations and the larger the longitudinal velocity fluctuations.The mass transfer process causes the bubble wake undergo an earlier transition from a symmetric state to a transition state,and finally to an asymmetric periodic shedding state.As the initial diameter increases,the length and width of the bubble wake increase,and the asymmetry of the wake vortex increase.The wake structure has a greater impact on the mass transfer of the smaller bubbles.The initial bubble mass transfer trails show obvious axisymmetric features,and with time,the bubble mass transfer trails become more and more irregular under the effect of wake flow and diffusion.The larger the initial diameter,the smaller the mass transfer coefficient during the rising of the bubble.关键词
氨气/气泡/传质/尾流/气液两相流/数值模拟Key words
ammonia/bubble/mass transfer/wake/gas-liquid two-phase flow/numerical simulation分类
数理科学引用本文复制引用
杨云淏,王宗勇,李雅侠,张春梅,龚斌,张丽..氨气气泡在水中的上升和传质特性[J].化学工程,2026,54(1):46-51,58,7.基金项目
辽宁省科技厅应用基础研究项目(2023JH2/101300006) （2023JH2/101300006）
辽宁省教育厅项目(LJKMZ20220764,LJ2019001) （LJKMZ20220764,LJ2019001）
辽宁省百千万人才工程项目(2020B085) （2020B085）
沈阳市中青年科技人才项目(RC190323) （RC190323）
