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粘性滴滴的动态行为对柔性网状表面的影响
Hao Gu1, Zhihai Jia1, Qianbing Zhou1
1School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China.
Langmuir : the ACS journal of surfaces and colloids
|May 31, 2024
概括
这项研究揭示了粘性液滴如何与柔性网状表面相互作用. 滴滴撞击会引起表面振动,影响传播,透和带形成,结果取决于韦伯数和撞击位置.
科学领域:
- 流体动力学 流体动力学
- 材料科学 材料科学 材料科学
- 表面科学是一门学科.
背景情况:
- 了解滴水与表面的相互作用对于各种应用至关重要.
- 灵活的表面引入了复杂的动态,这种动态在刚性基板上是看不到的.
- 粘性消散和表面振动是影响滴水行为的关键因素.
研究的目的:
- 为了研究粘性滴滴对柔性网状表面的影响的动态行为.
- 分析韦伯数和冲击位置对滴水表面相互作用的影响.
- 阐明表面振动在滴滴传播,透和带形成中的作用.
主要方法:
- 使用高速摄影来捕捉动态事件.
- 实验是在一个具有固定端的柔性网状表面上进行的.
- 使用不同的韦伯数来研究流体特性和冲击速度的影响.
主要成果:
- 滴滴撞击会引起表面振动,导致同时扩散和透.
- 韦伯数显著影响滴滴动力学,包括粘性消散和振动振幅.
- 撞击位置影响振动振幅和滴滴扩散,振幅增加远离固定端.
- 表面振动可以诱导心脏带的拉伸和破裂,受冲击位置和振动方向的影响.
结论:
- 表面振动在柔性网上的粘性滴的动态反应中起着关键作用.
- 韦伯数,撞击位置和表面振动之间的相互作用决定了复杂的滴滴行为,如带破裂.
- 结果提供了有关涂料,印刷和微流体应用的流体结构相互作用的见解.
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