气液化合物滴滴对超水表面影响的实验研究
Lei Xing1,2,3, Jinming Zhang1, Yang Gao4,5
1School of Mechanical Science and Engineering, Northeast Petroleum University, Daqing 163318, Heilongjiang, China.
Langmuir : the ACS journal of surfaces and colloids
|February 3, 2025
概括
研究气液化合物滴滴 (GLCD) 对超疏水表面的影响,揭示了不同的行为. 增加的粘度和气液比率显著改变了滴滴破裂和反弹动态,为工业过程提供了洞察力.
科学领域:
- 流体动力学 流体动力学
- 表面科学是一门学科.
- 材料科学 材料科学 材料科学
背景情况:
- 气液化合物滴 (GLCD) 在原子化,涂层和微封装中至关重要.
- 了解GLCD对表面的影响动态是过程优化的关键.
- 超水表面为滴滴带来了独特的相互作用挑战.
研究的目的:
- 为了研究GLCD在超疏水表面上的冲击动态.
- 分析撞击高度,粘度和气液体体积比 (Φ) 对GLCD行为的影响.
- 描述不同的碰撞结果:振荡断裂,反弹碰撞和冲击断裂.
主要方法:
- 使用高速摄影来捕捉GLCD撞击事件.
- 参数有所变化,包括撞击高度,液相粘度和气液体体积比 (Φ).
- 在不同的条件下分析了形态演变和碰撞类别.
主要成果:
- 滴滴断裂时间从收缩转向扩散,随着撞击高度的增加.
- GLCD反弹系数表现出对撞击高度的复杂,非单调的依赖.
- 增加的液体粘度抑制了扩散和反弹,提高了临界破裂高度.
- 较高的气液体体积比使液体膜变薄,减少扩散并增加破裂概率.
结论:
- 在超疏水表面上的GLCD冲击动态是复杂的,并且取决于参数.
- 研究结果提供了对复合液滴行为的基本见解.
- 结果为优化涂层和微封装等相关工程应用提供了宝贵的指导.
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