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通过横向流动多孔膜中的圆形腔体进行流量控制

Syed Rehman Jamil¹, Muhammad Salman Abbasi¹, Ali Turab Jafry²

¹Faculty of Mechanical Engineering, University of Engineering and Technology, Lahore, Pakistan.

Science progress

|March 1, 2024

概括

控制微流体纸质分析装置 (μPAD) 中的液体流量是关键. 添加空洞到纸张通道显著改变流量,使得诊断和监测更好地控制.

科学领域:

生物医学工程生物医学工程
材料科学材料科学材料科学
流体动力学流体动力学

背景情况:

基于纸张的微流体分析设备 (μPAD) 对于诊断,食品质量和环境监测至关重要.
控制μPAD中的液体流速对于准确的结果至关重要.
毛细管的作用和多孔介质的特性影响液体的运动.

研究的目的:

在μPAD中研究液体浸泡率的几何控制.
了解流动阻力和膜几何如何影响毛细血管透.
为μPAD应用开发增强的流量控制策略.

主要方法:

进行了实验和计算流体动力学 (CFD) 模拟.
通过改变液体 (粘度) 和纸张通道几何形状 (增加空洞) 来改变流动阻力.
检查了腔腔大小,类型和位置对浸泡率的影响.

主要成果:

在纸道中创建圆形空洞显著改变了透率.
增加腔体大小和液体粘度降低了流速.
腔腔位置影响了浸泡速度;在16毫米腔中观察到最大延迟.
与水相比,麻油的流速是85倍慢的.

结论:

几何修改,特别是添加空洞,可以有效控制μPAD中的液体流量.
这项研究为在μPAD中开发先进的流量控制策略提供了洞察力.
这些发现支持μPAD用于各种分析应用的进步.

关键词:

对差价合约 (CFD) 的分析.的媒介的媒介道腔腔是一个道腔.控制流量的流量控制器.在 μPADs 中.

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