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相关概念视频

The Thermodynamics of Mixing01:28

The Thermodynamics of Mixing

147
Mixing is a fascinating phenomenon in thermodynamics, particularly when considering the Gibbs energy of a mixture at constant temperature and pressure. This energy, denoted as G, tends to decrease during spontaneous mixing processes, offering insights into the composition changes that occur.Imagine two ideal gases, initially separated in different containers, with amounts nA and nB, respectively, both at a temperature T and pressure p. The chemical potentials of these gases have their 'pure'...
147

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相关实验视频

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Microfluidic Mixers for Studying Protein Folding
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微流体混合:以物理为导向的综述

Sri Manikandan Saravanakumar1, Paul-Vahe Cicek1

  • 1Microtechnologies Integration & Convergence Research Group, Université du Québec à Montréal (UQAM), Montreal, QC H2X 3Y7, Canada.

Micromachines
|October 28, 2023
PubMed
概括

本综述探讨了微流体混合技术,详细介绍了几何,电水力学,声流体学和磁水力学方法. 了解流体动力学是为各种应用选择高效的微混合解决方案的关键.

科学领域:

  • 物理 物理学 物理
  • 工程 工程师 工程师 工程师
  • 化学 化学 化学

背景情况:

  • 微流体学可以精确控制小流体体积.
  • 在许多芯片实验室应用中,微通道中的高效混合至关重要.
  • 现有的微混合技术存在各种挑战和局限性.

研究的目的:

  • 提供微流体微混合技术的全面审查.
  • 分析每个方法的基础物理和流体动力学.
  • 根据特定需求指导选择合适的微混合策略.

主要方法:

  • 使用道设计的几何微混合器.
  • 电气动力学 (EHD) 使用电场.
  • 使用声波的声学流体学.
  • 具有磁场的磁动力学 (MHD).

主要成果:

  • 几何方法提供了简单的制造和高效的混合.
  • EHD提供动态控制,但面临电力和供暖问题.
  • 声流体产生微流,用于局部混合.
  • MHD适用于特定的流体,使用磁场进行推进.
关键词:
声流体学 声流体学电气动力学是电气动力学.芯片上的实验室层状流的流量 层状流微型设备 微型设备微流体学 在微流体学方面微调混合的微调混合螺旋的螺旋是什么意思

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Assembly and Characterization of an External Driver for the Generation of Sub-Kilohertz Oscillatory Flow in Microchannels
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结论:

  • 微混合技术的选择取决于复杂性,效率和流体兼容性.
  • 对流体物理学的深入理解对于优化微混合至关重要.
  • 本综述巩固了知识,以帮助微流体应用中的知情决策.