摘要
采用三维格子玻尔兹曼方法,结合粒子离散相模型,对周期性非对称弯道中的粒子惯性迁移特性进和截面二次流及不同曲率半径弯道中截面二次流的分布情况进行分析,找出粒子聚焦速度和粒子滞留与粒子尺寸间的关系,为深入研究复杂流场环境下粒子运动特性及微流控芯片设计提供了一定参考依据。
A three-dimensional lattice Ludwig Boltzmann method is used,combined with the particle discrete phase model,the characteristics of inertia migration of particles in periodic asymmetric bends and the distribution of cross-section secondary flow in bends with different curvature RADII are analyzed.The relationship between particle size and particle focusing velocity and particle retention was found.It provides a reference for the study of particle motion characteristics and the design of microfluidic chip in complex flow field.
作者
邬泽聿
WU Ze-yu(Guangdong University of Technology,Guangzhou 510006,China)
出处
《装备制造技术》
2020年第4期87-91,共5页
Equipment Manufacturing Technology
关键词
格子玻尔兹曼法
惯性聚集
流固耦合
迪恩流
lattice boltzmann method
inertial focusing
fluid-structure interaction
dean flow
作者简介
邬泽聿(1994-),男,土家族,湖南人,硕士研究生,研究方向为微纳制造技术与模拟。
