›› 2014, Vol. 65 ›› Issue (7): 2535-2543.DOI: 10.3969/j.issn.0438-1157.2014.07.015

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Application of lattice Boltzmann method for simulation of multiphase/multicomponent flow in microfluidics

FU Yuhang, ZHAO Shufang, WANG Wentan, JIN Yong, CHENG Yi   

  1. Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
  • Received:2014-03-31 Revised:2014-04-14 Online:2014-07-05 Published:2014-07-05
  • Supported by:
    supported by the National Basic Research Program of China (2013CB733604).

多相/多组分LBM模型及其在微流体领域的应用

付宇航, 赵述芳, 王文坦, 金涌, 程易   

  1. 清华大学化学工程系, 北京 100084
  • 通讯作者: 程易
  • 基金资助:
    国家重点基础研究发展计划项目(2013CB733604)。

Abstract: Multiphase/multicomponent systems have been widely applied in chemical engineering field, generally involving complex physical processes (such as species transfer, phase change, generation and movement of interface) as well as chemical reactions. It is of great challenge to model and simulate such complex systems. Lattice Boltzmann method (LBM) has attracted more and more attention as a relatively new method in recent years. Compared with traditional methods, multiphase/multicomponent lattice Boltzmann models have certain advantages, such as the convenience of tracking dynamic fluid interfaces and the easy definition of solid boundaries. It is an ideal approach for meso-scale and scale-bridging simulations, especially successful in the applications of fluid flow simulations involving interfacial dynamics and complex boundaries in the multiphase/multicomponent systems in micro-chemical engineering areas. Based on the methodology scheme of LBM, this review introduces the state-of-the-art development of LB models applied to simulate the gas-liquid and liquid-liquid micro-flow systems.

Key words: multiphase flow, microfluidics, micro-droplet, simulation, lattice Boltzmann method

摘要: 多相/多组分流体在化工领域中广泛应用,通常伴随有组分传递、相变、界面的产生与运动、化学反应等复杂的物理、化学过程,建立描述相应复杂体系的理论模型和模拟方法面临着极大的挑战。格子Boltzmann方法(lattice Boltzmann method,LBM)是近年来备受关注的一种介观模拟方法;多相/多组分格子Boltzmann模型具有易于追踪多相动态界面、壁面性质设定简单等优点,从物理模型到计算精度和速度都有很大的优势,尤其适合于模拟微化工系统下的多相多组分流动问题。以格子Boltzmann方法为基础,重点介绍了气液及液液体系多相/多组分LBM模型的研究进展以及其在微流体系统中的应用。

关键词: 多相流, 微流体学, 微液滴, 模拟, 格子Boltzmann方法

CLC Number: