相关实验视频
Updated: Jan 31, 2026

06:42
Magnetically Induced Rotating Rayleigh-Taylor Instability
Published on: March 3, 2017
10.1K
蒸发驱动的溶性马兰戈尼控制在反转片中的雷利-泰勒不稳定性
Minwoo Choi1, Hyejoon Jun1, Hyoungsoo Kim1
1Department of Mechanical Engineering, KAIST, Daejeon, South Korea.
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|January 29, 2026
概括
选择性蒸发通过诱导溶性马兰戈尼应力来抑制反向液体膜中的雷利-泰勒不稳定性 (RTI). 这一发现为控制各种应用中的薄膜动态提供了一种新方法.
科学领域:
- 流体动力学 流体动力学
- 接口现象 接口现象
- 材料科学是一种材料科学.
背景情况:
- 倒置液体薄膜由于引力驱动的雷利-泰勒不稳定性 (RTI) 容易破裂.
- 控制界面动态对于涉及薄膜的应用至关重要.
研究的目的:
- 调查选择性蒸发的使用,以抑制或修改反向液体薄膜中的RTI.
- 了解Solutal Marangoni在稳定这些片中的作用.
主要方法:
- 系统的实验研究,使用高分辨率偏向测量来追踪片的演变.
- 开发一个结合重力,毛细体和马兰戈尼力的互补理论模型.
- 基于波动性,粘度和表面张力对比的不稳定性制度的分析.
主要成果:
- 确定了三种不同的不稳定制度:促进,抑制和持续的振荡.
- 证明选择性蒸发引起的溶性马兰戈尼应力可以有效地抑制RTI.
- 在实验测量和理论预测之间取得了定量一致.
结论:
- 蒸发驱动的马兰戈尼流是一种强大的策略,用于控制反转膜的界面不稳定性.
- 第一个系统的实验验证,在反向配置中,solutal-Marangoni抑制RTI.
- 为挥发性薄膜的不稳定性控制提供一个一般框架,对材料加工和软物质水力动力学有影响.
更多相关视频
相关概念视频
Inverting and Non-inverting OpAmps
1.8K
In an inverting amplifier, the input voltage is connected through a resistor to the inverting terminal. Meanwhile, the non-inverting terminal is grounded and a feedback resistor is established between the inverting and output terminal, as depicted in Figure 1.
1.8K
Microtubule Instability
6.2K
Microtubules are hollow cylindrical filaments having a diameter of approximately 25 nm and a length that varies from 200 nm to 25 μm. GTP-bound tubulin subunits form αβ-heterodimers for microtubule assembly. These core building blocks interact longitudinally, polymerizing into protofilaments. The protofilaments then interact with one another through lateral bonding forces to form stable cylindrical microtubules. These cylindrical filaments are dynamic as they undergo repeated...
6.2K
Solution Formation
37.5K
There is no one solvent that can dissolve every type of solute. Some substances that readily dissolve in a certain solvent might be insoluble in a different solvent. A simple way to predict which substances dissolve in which solvent is the phrase "like dissolves like". This means that polar substances, such as salt and sugar, dissolve in a polar substance like water. In contrast, non-polar substances are more soluble in non-polar solvents such as carbon tetrachloride.
This selective...
This selective...
37.5K
Enthalpy of Solution
30.4K
There are two criteria that favor, but do not guarantee, the spontaneous formation of a solution:
30.4K
Ideal Solutions
22.4K
According to Raoult’s law, the partial vapor pressure of a solvent in a solution is equal or identical to the vapor pressure of the pure solvent multiplied by its mole fraction in the solution. However, Raoult's Law is only valid for ideal solutions. For a solution to be ideal, the solvent-solute interaction must be just as strong as a solvent-solvent or solute-solute interaction. This suggests that both the solute and the solvent would use the same amount of energy to escape to the...
22.4K
General Properties of Solutions
35.8K
Many common substances around us exist as a solution, such as ocean water, air, and gasoline. All solutions are mixtures of substances that are composed of varying amounts of two or more types of atoms or molecules. A mixture with a non-uniform composition is a heterogeneous mixture, whereas a mixture with a uniform composition is a homogeneous mixture. The components that make the homogeneous mixture are evenly spread out and thoroughly mixed.
35.8K

