应用数学和力学2026，Vol.47Issue(3)：329-339,11.DOI:10.21656/1000-0887.460022
液滴撞击单根细丝分散特性的数值模拟研究
Numerical Study on Dispersion Characteristics of Droplets Impacting on a Single Fiber
摘要
Abstract
The high-gravity reactor,renowned for its superior mass transfer efficiency,plays a pivotal role in carbon capture processes.The wire mesh packing serves as the primary structural element enhancing mass transfer.To fully comprehend the dispersion mechanism,it is essential to investigate the dynamics of droplets impacting on a single fiber.The volume of fluid method was employed to numerically examine the interaction between a droplet and a fiber.The effects of factors such as the initial velocity(u0),the initial diameter(D0),the impact eccentricity(e),and the impact angle(θ)on droplet deformation and dispersion characteristics were analyzed in detail.Vertical or central impacts were divided into 4 key stages:splitting,merging,stretc-hing,and breaking.In contrast,eccentric and non-vertical impacts exhibit asynchronous breaking,sliding split-ting,and oblique deformation stages.To quantitatively assess the post-impact dispersion characteristics,the di-mensionless time(t*)and the gas-liquid interfacial area growth rate(η)were introduced.The results indicate that,increasing the initial velocity,reducing the droplet diameter,minimizing the eccentric distance,and maxi-mizing the impact angle all enhance dispersion.A correlation was established to predict the maximum increase rate in gas-liquid interfacial area.关键词
液滴撞击/变形演化/分散特性/气液界面面积/计算流体力学仿真Key words
droplet impact/deformation evolution/dispersion characteristic/gas-liquid interfacial area/com-putational fluid dynamics(CFD)simulation分类
数理科学引用本文复制引用
刘金鹏,丰生杰,张文博,刘子雄..液滴撞击单根细丝分散特性的数值模拟研究[J].应用数学和力学,2026,47(3):329-339,11.基金项目
中海油服科技项目(YSB20YF010) （YSB20YF010）
