哈尔滨工程大学学报2011，Vol.32Issue(3)：350-354,5.DOI:10.3969/j.issn.1006-7043.2011.03.015
点面电极系统高频流体驱动机理
A mechanism of fluid flow at high frequency in a point-plane electrodes system
摘要
Abstract
In order to analyze the mechanism of fluid flow at high frequency, the alternating current (AC) electrical field inducing fluid flow beyond the relaxation frequency was tested using the point plane electrodes system. The obvious fluid flow at this frequency was discovered. Electrothermal effect was shown to be the major factor of the fluid flow at high frequency in the point plane electrodes system, affecting the conductivity distribution. The process of fluid flow at high frequency was analyzed by coupling and numerical simulation methods based on the charge conservation equation, convection-diffusion equation, Navier-Stokes equation, heat convection and conduction equation, resulting in the electrical field, temperature field, and velocity field distribution in the point plane electrodes system. Fluid flow velocity against the voltage and frequency was analyzed and compared with the experimental results. The results show that the interaction of the conductivity gradient induced by electrothermal effect and the electrical field is the major function of the fluid flow at high frequency, and that the theoretical analysis and experimental results are consistent.关键词
电动流体力学/交流电热/驰豫频率/电导率梯度Key words
electrohydrodynamics/ AC electrothermal/ relaxation frequency/ conductivity gradient分类
机械制造引用本文复制引用
姜洪源,任玉坤,于东,霍彦婷,陶冶,Antonio Ramos..点面电极系统高频流体驱动机理[J].哈尔滨工程大学学报,2011,32(3):350-354,5.基金项目
国家自然科学基金资助项目(51075087) （51075087）
流体传动及控制国家重点实验室基金资助项目(GZKF-201004). （GZKF-201004）
