| 唐钧屹， 陈晔.表面张力驱动下挡板对微通道混合效果的影响[J].轻工机械,2020,38(2):18-23 |
| 表面张力驱动下挡板对微通道混合效果的影响 |
| Effect of Baffles on Mixing Performance of Surface Tension Driven Microchannel |
| |
| DOI：10.3969/j.issn.1005 2895.2020.02.004 |
| 中文关键词: 微混合器 表面张力驱动 挡板 混合效果 数值模拟 |
| 英文关键词:micro mixer surface tension driven baffle mixing performance numerical simulation |
| 基金项目: |
|
| 摘要点击次数: 781 |
| 全文下载次数: 884 |
| 中文摘要: |
| 微流控系统由于微通道尺寸变得越来越小，所以原先传统的外力驱动方式遇到了很大的困难。而表面张力驱动微流体不需要任何外部能量源，对于设备小型化和集成化非常有优势。课题组通过对微混合通道内设置挡板，改变挡板的结构参数，通过数值模拟来研究表面张力驱动下挡板结构参数对混合效果的影响。研究结果表明：设置了挡板后微通道的混合效果显著提高；同时随着挡板结构参数的改变，微通道的混合效果也随之呈现出一定的变化规律。挡板的设置扰乱了微流体的流动，使得流体间的界面接触变多，混合效果得到提高。 |
| 英文摘要: |
| As the size of microchannels of the microfluidic system becomes smaller and smaller, the traditional external force driving method has encountered great difficulties. The surface tension driven microfluid does not require any external power source, which is very advantageous for miniaturization and integration of microfluidic devices. By setting the baffle in the micro mixing channel and changing the structural parameters of the baffle, the influence of the structural parameters of the baffle driven by the surface tension on the mixing effect was studied by numerical simulation. The results show that the mixing effect of the microchannels with baffle is significantly improved. At the same time, with the change of the baffle structure parameters, the mixing effect of microchannel also presents a certain variation law. The setting of baffle disturbs the flow of the microfluids, making the interface contact of the fluids more and improving the mixing performance. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| 关闭 |
