arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 0709.1304physics.flu-dyn
收藏

一种改进的三维AC电渗泵的设计原理

A design principle for improved 3D AC electro-osmotic pumps

Damian Burch, Martin Z. Bazant

摘要:

三维(3D)AC电渗(ACEO)泵最近已被开发,其比先前的平面设计快得多且更鲁棒。其基本思想是通过在不同的高度放置相反的ACEO滑动速度来创建“流体输送机带”。目前的设计涉及具有电镀台阶的电极,其高度已在模拟和实验中优化。在这里,我们考虑改变边界条件-而不是几何形状-并预测通过使用不可极化材料制造3D特征可以进一步加倍流速。这通过去除垂直表面上的相反流来放大流体输送机带,并且它增加了驱动流的滑动速度。

英文摘要:

Three-dimensional (3D) AC electro-osmotic (ACEO) pumps have recently been developed that are much faster and more robust than previous planar designs. The basic idea is to create a ``fluid conveyor belt'' by placing opposing ACEO slip velocities at different heights. Current designs involve electrodes with electroplated steps, whose heights have been optimized in simulations and experiments. Here, we consider changing the boundary conditions--rather than the geometry--and predict that flow rates can be further doubled by fabricating 3D features with non-polarizable materials. This amplifies the fluid conveyor belt by removing opposing flows on the vertical surfaces, and it increases the slip velocities which drive the flow.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑