相关实验视频
Updated: May 30, 2025

08:45
Glass-Based Devices to Generate Drops and Emulsions
Published on: April 5, 2022
2.6K
液体通过电网流动完全分解成超细滴
Ziwei Li1, Yansong Li2, Zekun Cheng1
1State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China.
Nano letters
|January 31, 2025
概括
电网流原子化 (GTA) 创新使用旋转网和空气刀产生超细滴. 这种方法实现了4.8μm Sauter平均直径滴,推进了材料加工和纳米技术应用.
科学领域:
- 材料科学 材料科学 材料科学
- 流体动力学 流体动力学
- 纳米技术纳米技术
背景情况:
- 超细滴对于纳米技术和材料加工至关重要.
- 现有的超细滴的流驱动原子化器的建造具有挑战性.
研究的目的:
- 引入和验证一种新的电网流原子化 (GTA) 方法来产生超细滴.
- 探索在电网诱导的流下液体分解的机制.
主要方法:
- 开发GTA系统,使用旋转网来输送液体,使用气刀来喷.
- 在网格中,空气流从层状转向网格流的分析.
- 使用Sauter平均直径进行滴滴大小的表征.
主要成果:
- 成功生成了4.8微米Sauter平均直径的超细水滴.
- 通过三个不同的阶段证明液体分解:袋子形成,拉伸和流引起的分解.
- 对各种液体具有多用途的原子化能力,在超细喷雾干燥中具有有效性.
结论:
- 电网流原子化 (GTA) 是生产超细滴的有效方法.
- GTA系统将流特征与材料加工联系起来,使新的应用成为可能.
- 这一创新对纳米技术,材料科学和喷雾干燥技术具有广泛的影响.
相关概念视频
Surface Tension of Fluid
216
Surface tension is a fundamental property of fluids, occurring at the boundary between a liquid and a gas or between two immiscible liquids. This phenomenon arises from the cohesive forces between molecules at the fluid's surface, creating an effect similar to a stretched elastic membrane. Inside each fluid, molecules are equally attracted in all directions by neighboring molecules, but surface molecules experience a net inward force, resulting in surface tension.
Surface tension varies...
Surface tension varies...
216
Turbulent Flow
125
Turbulent flow is characterized by unpredictable fluctuations in velocity and pressure, which result in a chaotic fluid movement distinct from the orderly patterns of laminar flow. While laminar flow is governed by smooth, parallel layers with minimal mixing, turbulent flow exhibits highly irregular, three-dimensional patterns. This behavior arises due to instabilities in the fluid's velocity profile, and amplifies as the flow velocity increases. Minor disturbances, known as turbulent...
125
Laminar and Turbulent Flow
8.4K
Fluid dynamics is the study of fluids in motion. Velocity vectors are often used to illustrate fluid motion in applications like meteorology. For example, wind—the fluid motion of air in the atmosphere—can be represented by vectors indicating the speed and direction of the wind at any given point on a map. Another method for representing fluid motion is a streamline. A streamline represents the path of a small volume of fluid as it flows. When the flow pattern changes with time, the...
8.4K

