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Steady, Laminar Flow Between Parallel Plates01:17

Steady, Laminar Flow Between Parallel Plates

205
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.
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High Speed Droplet-based Delivery System for Passive Pumping in Microfluidic Devices
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了解后阵列设备中的滴滴断裂,具有外流量配置.

Shuzo Masui1, Yusuke Kanno1, Takasi Nisisako1

  • 1Institute of Innovative Research, Tokyo Institute of Technology, Yokohama, Kanagawa, Japan. nisisako.t.aa@m.titech.ac.jp.

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|October 24, 2023
PubMed
概括
此摘要是机器生成的。

微流体后阵列装置产生均的乳液滴. 这项研究揭示了流速和后几何如何影响滴滴大小,从而实现可预测的高通量乳化.

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科学领域:

  • 流体动力学 流体动力学
  • 材料科学是一种材料科学.
  • 化学工程是化学工程的组成部分.

背景情况:

  • 微流体后阵列装置提供高通量生成准单分散乳液滴.
  • 预测滴滴大小和后几何学对这些设备的影响仍然是一个挑战,限制了它们的应用.

研究的目的:

  • 为了研究微流体后阵列装置中的滴滴分解机制.
  • 建立基于流量条件和设备几何学的滴滴大小的预测模型.
  • 提高对乳化后阵列装置的理解和应用.

主要方法:

  • 使用软光刻法制造聚二甲基) 玻璃微流体器件.
  • 使用流配置来灵活调整分散和连续相位流速.
  • 在各种流量条件下观察滴滴分解并测量滴滴直径.

主要成果:

  • 滴滴大小受到分散到连续相的体积比率的显著影响.
  • 一个有效的毛细管数,包括乳液粘度和分散相分数,一致地描述实验结果.
  • 确定了两种不同的滴滴破裂模式 (阻塞和剪切诱导),表现出权力法相关性.

结论:

  • 该研究提供了对后阵列设备中滴滴分解的定量理解.
  • 功率定律相关性有效地描述了滴滴生成特征,使预测和控制成为可能.
  • 这项工作促进了使用微流体后阵列装置的强大,高吞吐量和连续乳化.