• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>IEEE Regional Symposium on Micro and Nano Electronics >Effect of zeta potential variation in single phase flow characteristics of a rectangular nanochannel
【24h】

Effect of zeta potential variation in single phase flow characteristics of a rectangular nanochannel

机译：Zeta电位变化对矩形纳米通道单相流动特性的影响

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This report presented a 2D model for electroosmotic (EOF) aqueous fluid flow analysis along nanochannels connecting two reservoirs. The model uses the Navier-Stokes equations with electroosmotic velocity boundary condition at nanochannel wall. Zeta potential of the wall surface is varied and the influences on the velocity profile are observed for various channel height. Shear stress rate near the nanochannel entrance of different width has also been investigated. The magnitude velocity lies on the magnitude of zeta potential or the surface charge of the wall. The increased charged on the solid wall, also increased the velocity flow. The decreased height of channel helps to increase the flow velocity along it. The maximum and minimum flow velocities are recorded at channel height of 50nm and 250nm respectively with 35% difference. At all simulated channel height, the flow at the entrance of nanochannel is increased and formed a peak velocity but it will decrease and become uniform at the position far from the channel wall. The shear stress at the reservoir-nanochannel edge is increased with the decreased of channel height due to low aspect ratio of reservoir-channel dimension.
机译：该报告提出了沿着连接两个储层的纳米通道进行电渗（EOF）水性流体流动分析的二维模型。该模型使用在纳通道壁处具有电渗速度边界条件的Navier-Stokes方程。壁表面的ζ电势是变化的，并且对于各种通道高度观察到了对速度分布的影响。还研究了不同宽度的纳米通道入口附近的剪切应力率。大小速度取决于zeta电位或壁的表面电荷的大小。固体壁上带电的增加，也增加了流速。通道高度的降低有助于增加沿通道的流速。在通道高度分别为50nm和250nm时记录最大和最小流速，相差35％。在所有模拟通道高度处，纳米通道入口处的流量增加并形成峰值速度，但在远离通道壁的位置处它将减小并变得均匀。由于储层-河道尺寸的长宽比低，储层-纳米河道边缘的剪应力随着河道高度的减小而增加。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号