本文建立了固体表面上静止液滴的势能方程,根据能量最小化原理,当系统总势能取得最小值时,液滴将处于平衡状态.采用有限元方法,将初始自由液面离散化,通过曲面上节点的虚拟位移,改变自由液面的拓扑结构,使系统总势能取得最小值,从而得到静止液滴的形状.并应用该方法对均质表面和梯度表面能材料表面上的液滴界面进行了数值模拟,得到了均质材料表面和梯度表面能材料表面上静止液滴的界面形状及分布.
参考文献
| [1] | Finn R.Equilibrium Capillary Surfaces[M].Berlin:Springer-Verlag,1986 |
| [2] | Padday J F .The Profiles of Axially Symmetric Menisci[J].Philosophical Transactions of The Royal Society of London Series A:mathematical and Physical Sciences,1971,269(1197):265-293. |
| [3] | O'Brien S B G .On the Shape of Small Sessile and Pendant Drops by Singular Perturbation Techniques[J].Journal of Fluid Mechanics,1991,233:519-537. |
| [4] | Broun R A;Jr F M O;Scriven L E .Static Drops on an Inclined Plane:Analysis by the Finite Element Method[J].Journal of Colloid and Interface Science,1980,73(01):76-87. |
| [5] | Iliev S D .Iterative Methods for the Shape of Static Drops[J].Computer Methods in Applied Mechanics and Engineering,1995,126(3-4):251-265. |
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