TWEO微流体驱动理论模型与实验研究

为研究行波电渗(TWEO)微流体驱动，在封闭微通道内TWEO微流体驱动进行了仿真和实验分析。根据双电层电荷分布规律，建立了行波电渗微流体驱动理论模型；通过对行波电渗电场和流场问题的求解，获得了封闭通道内流场仿真结果，并与实验结果相比较，验证了相关理论的正确性；对微通道内2/3高度处微流体流速进行仿真与实验结果分析，结果显示电渗流流速与频率的关系满足正态分布，为进一步展开对行波电渗微流体驱动及其在芯片实验室中的应用奠定了基础。

A theoretic model for TWEO pumping microflow and experimental research

To research traveling wave electroosmotic(TWEO) driving microflow, simulation and experimental analysis for TWEO flow in a closed microchannel are explored. From the charge distribution in the double electric layer, a nonlinear model for TWEO pumping microflow is presented. Through solving the electric field and velocity field problems, the velocity field simulation is presented in a closed microchannel. Contrasting with the experimental result, the theory for the model is verified. The velocities on the 2/3 height in the microchannel are showed in simulations and experiments, the results show the relation between velocity and frequency satisfy normal distribution. These results offer a basis for further researching TWEO pumping microflow and it application in lab on a chip.