相关实验视频
Updated: Feb 24, 2026

08:40
Light-driven Molecular Motors on Surfaces for Single Molecular Imaging
Published on: March 13, 2019
12.1K
液体/空气接口上的等离子光热电机的蒸汽驱动
Fanchen Meng1, Wei Hao1, Shengtao Yu1
1State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University , 800 Dongchuan Road, Shanghai 200240, People's Republic of China.
Journal of the American Chemical Society
|August 25, 2017
概括
一种新的蒸汽喷气推进机制使电机能够在液体表面快速移动,克服了传统光热电机在低表面张力的局限性. 这种进步扩大了可控制微电机的应用.
科学领域:
- 微流体和纳米技术
- 表面科学
- 热力学
背景情况:
- 传统的光热发动机依靠马兰戈尼效应进行推进.
- 低表面张力液体显著降低了马兰戈尼驱动电机的效率.
- 需要在更广泛的液体表面张力范围内有效的推进机制.
研究的目的:
- 引入和研究微型发动机的新蒸汽喷气推进机制.
- 证明这种机制在液体/空气界面上的有效性.
- 提高推进力和适用于各种液体环境.
主要方法:
- 开发一种基于热蒸气喷射的新型推进系统.
- 在不同表面张力的液体上对电机性能进行试验.
- 设计和实施蒸汽积累功能以提高性能.
主要成果:
- 蒸汽喷气机制可以在液体/空气接口上快速推进发动机.
- 通过广泛的液体表面张力实现了有效的推进.
- 蒸汽积累设计显著提高了推进力和液体适用性.
结论:
- 蒸汽喷气推进机制为马兰戈尼驱动系统提供了强大的替代方案.
- 这项技术扩大了光热电机的运行范围,包括低表面张力液体.
- 未来的应用包括在各种液体接口上精确控制运动的先进微电机设计.
相关概念视频
Vaporization
38.6K
The physical form of a substance changes by changing its temperature. For example, raising the temperature of a liquid causes the liquid to vaporize (convert into vapor). The process is called vaporization—a surface phenomenon. For vaporization to occur, kinetic energy must be greater than the intermolecular forces that keep molecules bonded. The amount of energy needed to vaporize a quantity of liquid at a given pressure and a constant temperature is called the heat of vaporization. When...
38.6K
Steady, Laminar Flow Between Parallel Plates
917
Understanding steady, laminar flow between parallel plates is essential for analyzing and designing flow in narrow rectangular channels, commonly found in various water conveyance and drainage systems. The Navier-Stokes equations govern fluid motion and are generally challenging to solve due to their nonlinearity. However, simplifications are possible in certain cases, like the steady laminar flow between parallel plates. For this scenario, we assume steady, incompressible, laminar flow.
917

