PIV measurements in a microfluidic 3D-sheathing structure with three-dimensional flow behaviour
PIV measurements in a microfluidic 3D-sheathing structure with three-dimensional flow behaviour
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DOI：
10.1088/0960-1317/12/6/318
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发表时间：
2002-11-01
影响因子：
2.3
通讯作者：
Westergaard, CH
中科院分区：
文献类型：
--
作者：
Klank, H;Goranovic, G;Westergaard, CH
复杂微流体系统的设计和生产时间相当长，通常长达数月。因此，为了节省昂贵的制造资源，在设计和制造微器件之前能够理解和预测流动现象是非常重要的。这些结构通常具有复杂的几何形状和强烈的三维流动特性，这对微颗粒图像测速（micro- piv）技术提出了挑战。利用微piv测量了微流体3d护套结构在整个体积中的流动。此外，应用立体原理获得了所有三个速度分量，显示了从微piv测量中获得全体映射（x, y, z， U， V， W）的可行性。结果与计算流体力学（CFD）模拟结果进行了比较。
The design and production time for complex microfluidic systems is considerable, often up to several months. It is therefore important to be able to understand and predict the flow phenomena prior to design and fabrication of the microdevice in order to save costly fabrication resources. The structures are often of complex geometry and include strongly three-dimensional flow behaviour, which poses a challenge for the micro particle image velocimetry (micro-PIV) technique. The flow in a microfluidic 3D-sheathing structure has been measured throughout the volume using micro-PIV. In addition, a stereoscopic principle was applied to obtain all three velocity components, showing the feasibility of obtaining full volume mapping (x, y, z, U, V, W) from micro-PIV measurements. The results are compared with computational fluid dynamics (CFD) simulations.