化工学报
化工學報
화공학보
JOURNAL OF CHEMICAL INDUSY AND ENGINEERING (CHINA)
2014年
7期
2535-2543
,共9页
付宇航%赵述芳%王文坦%金涌%程易
付宇航%趙述芳%王文坦%金湧%程易
부우항%조술방%왕문탄%금용%정역
多相流%微流体学%微液滴%模拟%格子Boltzmann方法
多相流%微流體學%微液滴%模擬%格子Boltzmann方法
다상류%미류체학%미액적%모의%격자Boltzmann방법
multiphase flow%microfluidics%micro-droplet%simulation%lattice Boltzmann method
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。
多相/多組分流體在化工領域中廣汎應用,通常伴隨有組分傳遞、相變、界麵的產生與運動、化學反應等複雜的物理、化學過程,建立描述相應複雜體繫的理論模型和模擬方法麵臨著極大的挑戰。格子 Boltzmann 方法(lattice Boltzmann method, LBM)是近年來備受關註的一種介觀模擬方法;多相/多組分格子Boltzmann模型具有易于追蹤多相動態界麵、壁麵性質設定簡單等優點,從物理模型到計算精度和速度都有很大的優勢,尤其適閤于模擬微化工繫統下的多相多組分流動問題。以格子Boltzmann方法為基礎,重點介紹瞭氣液及液液體繫多相/多組分LBM模型的研究進展以及其在微流體繫統中的應用。
다상/다조분류체재화공영역중엄범응용,통상반수유조분전체、상변、계면적산생여운동、화학반응등복잡적물리、화학과정,건립묘술상응복잡체계적이론모형화모의방법면림착겁대적도전。격자 Boltzmann 방법(lattice Boltzmann method, LBM)시근년래비수관주적일충개관모의방법;다상/다조분격자Boltzmann모형구유역우추종다상동태계면、벽면성질설정간단등우점,종물리모형도계산정도화속도도유흔대적우세,우기괄합우모의미화공계통하적다상다조분류동문제。이격자Boltzmann방법위기출,중점개소료기액급액액체계다상/다조분LBM모형적연구진전이급기재미류체계통중적응용。
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.