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基于相场格子博尔兹曼方法的接触线运动的实现
Long Ju1, Zhaoli Guo2, Bicheng Yan3
1Computational Transport Phenomena Laboratory (CTPL), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia.
Physical review. E
|May 17, 2024
概括
本研究介绍了一种简化方法,用于模拟接触线运动,使用相场格子博尔兹曼法. 新策略提高了准确性,并简化了湿边界条件的实施,改善了液体-固体相互作用的模拟.
科学领域:
- 计算流体动力学的流体动力学.
- 接口现象 接口现象
- 材料科学 材料科学 材料科学
背景情况:
- 在各种科学和工程领域,精确模拟湿现象和接触线动态至关重要.
- 现有的相场格子博尔兹曼方法经常面临复杂的边界条件和插值的挑战.
- 实现基于自由能量的湿边界条件需要强大而高效的数值策略.
研究的目的:
- 提出一种新的策略,在相场格子博尔兹曼法中实现基于自由能量的湿化边界条件.
- 为了简化接触线运动的数值实现,同时保持高精度.
- 提供一种多功能方法,能够模拟各种表面上的滴滴行为.
主要方法:
- 液体-固体自由能量被整合到化学潜力中,绕过了直接的边界条件实现.
- 这种方法避免了复杂的插入,特别是对于不规则的几何形状.
- 阶段场格子博尔兹曼法用于数值模拟.
主要成果:
- 拟议的方法大大简化了接触线运动的实施.
- 数字模拟在捕捉湿现象方面表现出很好的准确性.
- 在平面,倾斜和曲线边界上传播的滴滴成功模拟,验证了该方法的能力.
结论:
- 开发的策略提供了一种有效和准确的方法来模拟多相流程中的接触线运动.
- 这种方法在计算效率和实施方便性方面为湿现象提供了显著的优势.
- 这种方法非常适合在各种应用中研究复杂的界面动态.
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