Two-Dimensional Lattice Boltzmann Model for Droplet Impingement and Breakup in Low Density Ratio Liquids

作     者：Amit Gupta Ranganathan Kumar 

作者机构：Department of Mechanical EngineeringIndian Institute of TechnologyNew DelhiIndia 110016 Department of MechanicalMaterials and Aerospace EngineeringUniversity of Central FloridaOrlandoFL 32816USA 

出 版 物：《Communications in Computational Physics》 (计算物理通讯（英文）)

年 卷 期：2011年第10卷第8期

页      面：767-784页

核心收录：

学科分类：080704[工学-流体机械及工程] 080103[工学-流体力学] 08[工学] 0807[工学-动力工程及工程热物理] 0704[理学-天文学] 0702[理学-物理学] 0801[工学-力学（可授工学、理学学位）] 

主　　题：Lattice Boltzmann droplet impingement spread factor breakup 

摘      要：A two-dimensional lattice Boltzmann model has been employed to simulate the impingement of a liquid drop on a dry *** a range of Weber number,Reynolds number and low density ratios,multiple phases leading to breakup have been *** analytical solution for breakup as function of Reynolds and Weber number based on the conservation of energy is shown to match well with the *** the moment breakup occurs,the spread diameter is maximum;it increases with Weber number and reaches an asymptotic value at a density ratio of *** breakup is found to be more viable for the case when the wall is non-wetting or neutral as compared to a wetting *** breakup,the distance between the daughter droplets is much higher for the case with a non-wetting wall,which illustrates the role of the surface interactions in the outcome of the impact.