在功能性拉切谷阵列上实现沸滴的双向运输
Yunlong Jiao1, Xi Chen1, Yuhang Guo1
1Institute of Tribology, Hefei University of Technology, Hefei 230009, China.
Langmuir : the ACS journal of surfaces and colloids
|September 11, 2025
概括
研究人员开发了一种功能性子谷阵列 (RVA),用于在加热表面上的双向滴滴传输. 这项创新使得可控制的水滴在各种沸状态和温度的运动成为可能,这对于热管理至关重要.
科学领域:
- 表面科学和纳米技术
- 热传递和流体动力学 热传递和流体动力学
- 材料工程是材料的工程.
背景情况:
- 对先进的热管理技术来说,控制在加热表面上的滴滴传输至关重要.
- 现有的方法主要实现单向滴滴运动,双向控制在各种温度范围内仍然是一个重大挑战.
- 开发有利于调节式滴滴动态的表面对于提高热交换效率至关重要.
研究的目的:
- 制造一个功能性的子谷阵列 (RVA),能够在加热的碳钢表面上实现双向滴滴自传输.
- 在RVA上研究滴滴行为和跨核,过渡和薄膜沸模式的运输机制.
- 探索滴水冲击模式和关键参数 (韦伯数,滴水体积) 对双向运输的影响.
主要方法:
- 使用激光微纳米处理技术,在45碳钢表面上制造一个功能子谷阵列 (RVA).
- 实验观察和分析滴水的行为,包括沸状态 (核,过渡,膜) 和运输方向.
- 系统地研究韦伯数和滴水量对滴水动力学和自我运输的影响.
主要成果:
- 制造的RVA成功实现了在广泛的温度范围内实现双向滴滴自传输.
- 滴在核和过渡沸过程中向前移动,在薄膜沸过程中向后移动.
- 在过渡性沸过程中,确定了两种不同的滴水冲击接触模式 (粘合和反弹),影响运动行为.
结论:
- 功能RVA表面为实现可控制的双向滴滴传输提供了一种新方法,克服了单向方法的局限性.
- 可调节的滴水沸状态和RVA上的冲击模式允许精确控制滴水运动方向.
- 这项技术具有显著的潜力,可以通过高效的滴滴操纵来增强热管理系统.
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