利用晶格波茲曼法模擬微結構表面上之液滴

In this thesis, three-dimensional lattice Boltzmann multi-phase fluid model is applied to simulate binary fluid systems with large density ratio (1000) and partial wetting surface. It is based on the model of Zheng et al. [26] combined with partial wetting boundary condition of Briant et al. [12]. In the present work, a liquid droplet on a partial wetting surface with given contact angle is simulated for checking the reliability of model. The simulated results are in good agreement with theoretical solutions. In addition, two types of micro-structured surfaces which enhance surface hydrophobicity are also considered in the study. By applying appropriate implementation on micro-structures, the obtained apparent contact angles are also verified by experimental measurement and theoretical prediction with good agreement. Also, the parallel performance is discussed. The parallel efficiency can reach 80% when using 256 cores with a 2D domain decomposition.

關鍵字

晶格波茲曼法；兩相流模型；高密度比；接觸角；微結構表面

參考文獻

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利用晶格波茲曼法模擬微結構表面上之液滴

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