液体激光诱导转移的格子玻尔兹曼仿真研究  

Lattice Boltzmann Simulation of Laser-induced Transfer of Liquid

作　　者：黄亚军 蔡文莱 陈英怀 黄志刚[1,2] HUANG Ya-jun;CAI Wen-lai;CHEN Ying-huai;HUANG Zhi-gang(School of Electro-mechanical Engineering,Guangdong University of Technology,Guangzhou 510006,China;Guangzhou Key Laboratory of Nontraditional Macining and Equipment,Guangzhou 510006,China)

机构地区：[1]广东工业大学机电工程学院,广州510006 [2]广州市非传统制造技术及装备重点实验室,广州510006

出　　处：《光子学报》2018年第8期112-119,共8页Acta Photonica Sinica

基　　金：国家自然科学基金(Nos.11172072;51175091)资助~~

摘　　要：采用介观尺度的格子玻尔兹曼方法,结合气-液两相流模型,对藻酸盐溶液的激光诱导液体转移进行了三维模拟.为获取气-液两相流模型的入口条件,引入Rayleigh-Plesset方程对等离子体气泡的演化进行计算.数值模拟结果与之前的实验结果吻合,反映了气泡形状变化和液体的向前向后转移现象.仿真研究表明液体的激光诱导转移机制主要与气泡动力学有关,气泡的快速膨胀将引发向前转移,而气泡的剧烈收缩是形成向后转移的主要原因.The mesoscopic lattice Boltzmann method and the gas-liquid two-phase flow model are used to simulate the Laser induced Forward Transfer （LIFT） of liquid. Rayleigh-Plesset equation is introduced to calculate the evolution of the plasma bubble, so as to obtain the inlet boundary conditions for the two- phase LBM model of the LIFT. The simulation results agree well with former experimental observations. The evolution of bubble shape, the forward and backward ejections are all faithfully represented, which suggests that the dynamics of the laser-induced bubble is mainly responsible for the material transfer in LIFT. The forward liquid ejection is related to the fast expansion of the laser-induced bubble, while the backward ejection is caused by the collapse of the bubble.

关 键 词：激光诱导转移 格子玻尔兹曼方法 激光诱导等离子体 数值仿真 两相流模型 

分 类 号：TN249[电子电信—物理电子学]