Insight into the micro scale dynamics of a micro fluidic wetting-based conveying system by particle based simulation
Insight into the micro scale dynamics of a micro fluidic wetting-based conveying system by particle based simulation
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通过基于粒子的模拟深入了解基于微流体润湿的输送系统的微观动力学
DOI：
10.1007/s00542-012-1460-x
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
J. Korvink
中科院分区：
文献类型：
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作者：
J. Lienemann;D. Weiss;A. Greiner;D. Kauzlaric;Oliver Grünert;J. Korvink
我们使用多体耗散粒子动力学方法（MDPD）模拟微流体输送系统。输送系统可以通过让微小部件漂浮在液滴内部或顶部来将它们输送到表面上的指定点，通过改变基板的润湿行为（例如，在电介质上进行电润湿）来泵送液滴。随后蒸发去除液体；微型零件保持在其最终位置，第二个基板可以将其拾取。通过这种方式，润湿控制可以与最终的器件基板分离。 MDPD 方法用粒子表示流体，这些粒子被解释为流体分子的粗粒度。相互作用力的选择允许自由表面。为了引入接触角模型，基底之外的非移动颗粒通过 MDPD 力与流体颗粒相互作用，从而出现所需的接触角。微观零件由具有弹簧型相互作用力的粒子模拟。
We simulate a microfluidic conveying system using the many-body dissipative particle dynamics method (MDPD). The conveying system can transport micro parts to a specified spot on a surface by letting them float inside or on top of a droplet, which is pumped by changing the wetting behaviour of the substrate, e.g., with electrowetting on dielectrics. Subsequent evaporation removes the fluid; the micro part remains on its final position, where a second substrate can pick it up. In this way, the wetting control can be separate from the final device substrate. The MDPD method represents a fluid by particles, which are interpreted as a coarse graining of the fluid’s molecules. The choice of interaction forces allows for free surfaces. To introduce a contact angle model, non-moving particles beyond the substrate interact with the fluid particles by MDPD forces such that the required contact angle emerges. The micro part is simulated by particles with spring-type interaction forces.
DOI：
10.1209/0295-5075/19/3/001
发表时间：
1992-06-01
期刊：
EUROPHYSICS LETTERS
影响因子：
--
作者：
HOOGERBRUGGE, PJ;KOELMAN, JMVA
通讯作者：
KOELMAN, JMVA