离心环境下毛细被动阀的理论与实验

发布时间：2018-03-18 20:34

  本文选题：三维模型　切入点：毛细被动阀　出处：《浙江大学学报(工学版)》2016年08期 　论文类型：期刊论文

【摘要】：为了更好地预测毛细被动阀的突破压力,对液体的突破过程进行研究.利用液体界面能方程,分析毛细被动阀的工作原理.根据弯曲面所对应圆心角的不同,将液体的突破过程划分为3个阶段,对亲水被动阀在矩形微通道中的突破压力进行三维理论分析.利用聚甲基丙烯酸甲酯(PMMA)为基材,制作了离心式被动阀芯片.通过可视化离心平台得到了被动阀的突破频率,与不同的三维突破模型进行对比分析.研究结果表明,该三维模型对被动阀突破压力有着较准确的预测;模型所划分的不同突破阶段可以合理地描述被动阀的突破过程.
[Abstract]:In order to better predict the breakthrough pressure of the capillary passive valve, the breakthrough process of the liquid is studied. The working principle of the capillary passive valve is analyzed by using the liquid interface energy equation. The breakthrough process of liquid was divided into three stages, and the breakthrough pressure of hydrophilic passive valve in rectangular microchannel was analyzed theoretically. A centrifugal passive valve chip is made, and the breakthrough frequency of the passive valve is obtained through a visual centrifugal platform, which is compared with different three dimensional breakthrough models. The results show that, The three dimensional model can accurately predict the breakthrough pressure of the passive valve, and the breakthrough process of the passive valve can be reasonably described by the different breakthrough stages of the model.
【作者单位】： 南京理工大学机械工程学院;
【基金】：国家自然科学基金资助项目(51175265) 江苏省高校研究生科研创新计划资助项目(KYLX15_0339)
【分类号】：TH134
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本文编号：1631215