浮力
机械
动力学(音乐)
雷诺数
油滴
变形(气象学)
拉普拉斯方程
拉普拉斯压力
化学
材料科学
表面张力
湍流
物理
边值问题
热力学
复合材料
生物化学
量子力学
声学
乳状液
作者
Feng Rong,Limin He,Yuling Lü,Ce Wang,Yueyang Han
出处
期刊:Journal of physics
[IOP Publishing]
日期:2023-10-01
卷期号:2594 (1): 012045-012045
标识
DOI:10.1088/1742-6596/2594/1/012045
摘要
Abstract Dynamics analysis of the oil droplet in water impacting on a rigid wall in the range of Re=9.3 ∼ 231.39, We=0.003 ∼ 0.637 was carried out by combining microscopic experiment with theoretical study. In the oil droplet’s force equation, we consider the added mass force and the water film induced force, in addition to the conventional forces, i.e. buoyancy and resistance to flow. Stokes-Reynolds drainage equation (i.e. SR model) and Young-Laplace equation (i.e. YL model) are combined with the force equation to numerically solve the motion law of oil droplets near the wall for different control parameters. The study indicates that coupled model would expect oil droplet velocities, motion trajectories and capture the kinetic behaviors of the water-film drainage evolution. The interfacial deformation of oil droplets causes changes in the pressure and the pressure distribution pattern has an important relationship with the shape of the oil droplet interface. These two forces play a dominant role in droplet motion during the collision and the maximum value of these two forces increases with increasing droplet size and Re number. Future research should shift towards complex oil-water systems and consider the effects of chemicals on oil droplets so that the application of the model will be more generalisable. At the same time, computer technology should be used to transfer the two-dimensional view to a three-dimensional view to analyse the deformation of the oil-water interface and to better understand the drainage process of the water film.
科研通智能强力驱动
Strongly Powered by AbleSci AI