双滴撞击一个倾斜的超水表面
Shu-Rong Gao1,2,3, Xin-Yue Huang1,2, Zhe Liu1,2
1Research Center of Engineering Thermophysics, North China Electric Power University, Beijing 102206, China.
Langmuir : the ACS journal of surfaces and colloids
|June 6, 2024
概括
双滴撞击超疏水表面显示了四种反弹行为. 优化滴滴排列和反弹区域可以显著减少接触时间,以提高滴滴动态.
科学领域:
- 流体动力学 流体动力学
- 表面科学是一门科学.
- 计算物理学的计算物理.
背景情况:
- 超疏水表面具有独特的湿特性.
- 滴滴撞击动态在各种应用中至关重要.
- 了解多滴滴相互作用是复杂的.
研究的目的:
- 调查双滴的反弹动力学在倾斜的超水表面与宏观.
- 确定不同的反弹区域及其影响因素.
- 分析滴滴排列和韦伯数对接触时间的影响.
主要方法:
- 采用了格子博尔茨曼方法 (LBM) 模拟.
- 分析了四个确定的反弹区域:NCR,PCR-M,PCR-S和CCR.
- 关于滴滴排列,中心到中心距离和韦伯数的参数研究.
主要成果:
- 确定了四个反弹地区 (NCR,PCR-M,PCR-S,CCR).
- 滴滴排列,距离和韦伯数决定反弹行为.
- 部分凝结反弹 (中间部分首先反弹) 减少了接触时间.
- 与平行的排列使得接触时间因液膜不对称而显著缩短.
结论:
- 反弹行为和接触时间可以通过滴滴排列和反弹区域的选择来控制.
- LBM模拟提供了对复杂的多滴滴撞击现象的见解.
- 这些发现可以指导表面的设计,以有效地操纵滴滴.
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