Attar Elham, Körner Carolin
Department of Materials Science and Technology, WTM, University of Erlangen-Nuremberg, Martensstrasse 5, 91058 Erlangen, Germany.
J Colloid Interface Sci. 2009 Jul 1;335(1):84-93. doi: 10.1016/j.jcis.2009.02.055. Epub 2009 Apr 7.
Wetting is an important phenomenon in many engineering applications. In this study, a new algorithm is presented to simulate 2D dynamic wetting phenomena using the single phase lattice Boltzmann method (LBM). Basis of our method is an additional force at triple points where fluid, gas and wall intersect. This supplementary force, which is treated as a capillary force, is able to simulate the equilibrium and dynamic wetting behavior of liquids. Based on this method, droplet spreading or recoiling on a solid surface and the capillary rise with various wetting properties can be simulated successfully. The results of the simulation are compared with analytical solutions and experiments. Good agreement is achieved for dynamic as well as equilibrium situations.
浸润是许多工程应用中的重要现象。在本研究中，提出了一种新算法，用于使用单相格子玻尔兹曼方法（LBM）模拟二维动态浸润现象。我们方法的基础是在流体、气体和壁相交的三相点处施加一个额外的力。这个补充力被视为毛细力，能够模拟液体的平衡和动态浸润行为。基于此方法，可以成功模拟液滴在固体表面的铺展或回缩以及具有各种浸润特性的毛细上升。将模拟结果与解析解和实验进行了比较。在动态和平衡情况下都取得了良好的一致性。
