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Updated: Feb 21, 2026

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二元水滴对平面和微柱状疏水基板的影响力学

Mukesh Kumar Yadav¹, Nagesh D Patil^1,2, Prashant R Waghmare³

¹Department of Mechanical Engineering, Indian Institute of Technology Bhilai, Bhilai 491002, India.

Langmuir : the ACS journal of surfaces and colloids

|February 19, 2026

概括

这项研究探讨了二进制滴水对疏水表面的影响,揭示了微柱状结构与平面相比,增强了滴水升起. 表面特性和冲击速度显著影响滴滴相互作用结果.

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:

了解滴水冲击动态对于各种应用至关重要.
表面的湿透性和形态学显著影响滴滴的行为.
卡西-巴克斯特和温泽尔状态描述了滴滴与纹理表面的相互作用.

研究的目的:

实验性地研究平面和微柱状疏水表面上的二进制滴滴撞击动力学.
分析表面湿度和冲击速度 (韦伯数) 对滴滴相互作用模式的影响.
开发基于能源的模型和经验的相关性,用于滴滴的传播和高度.

主要方法:

对二进制滴滴对具有不同固体分量的聚甲基 (PDMS) 基板的影响的实验研究.
使用高速可视化来捕捉垂直正面碰撞期间短暂的液滴演变.
使用基于能量的分析来建模滴滴传播比率和轴高度.

主要成果:

与平面相比,微柱状基板增加了滴滴升起的概率.
观察到的相互作用模式包括没有升起,升起,部分升起,直接凝聚和与断裂结合.
在卡西-巴克斯特州,最大滴水高度是由韦伯数决定的,而不是固体分数.

结论:

表面形态和冲击条件决定了二进制滴水相互作用的结果.
为滴滴传播和高度预测提出了简化的经验相关性.
这些发现可以指导喷雾冷却,自洁和能源采集等应用的表面设计.

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