1311 異なる濡れ性を有する固体壁面上における液滴挙動のSPHシミュレーション(OS13. 衝撃・崩壊問題(3),オーガナイズドセッション講演)

概要

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In this study, SPH (Smoothed Particle Hydrodynamics) simulations of the contact behavior of a liquid on a solid wall have been performed considering the effect of the surface tension. Instead of using the curvature-based expression of the surface tension at the interface, where a problem arises due to the discontinuity at the three-phase interface, a surface tension expression based on the surface free energy according to the Cahn-Hilliard model is introduced. The simulations of the axi-symmetric vibration of a droplet showed that the resulting surface tension could realize the theoretical vibration frequency. In addition, the difference in the droplet behavior on a solid surface with different wettability was simulated by changing the surface at the solid-liquid interface.
一般社団法人日本機械学会の論文
2010-09-23